How do you expect to achieve a post-scarcity situation without force nor without using free-market capitalism to achieve such a scenario?
Technically I could imagine this happening by voluntary work but I see it as unrealistic in the large scale. One possibility is that resource-based communities and ways of life start to pop up independently. Self-sufficient villages are a good example of this, it's resource-based thinking in a smaller scale. This could eventually lead to larger scale changes. I also think that capitalism will eventually lead to this type of system because of two things, it gets so cheap to produce everything and there's not enough payed work for people anymore. Unless we destroy the world before that, which I see as a very real possibility.
What if I want a custom product that none of your technocrat distribution centers have? Am I just a evil capitalist?
No, you are a human being. I'd imagine a lot of the products would have very advanced customization features because it wastes less resources than creating 100 different products to satisfy every need. If the kind of product you're looking for is still missing, you can take part in the designing process of products. All production would be done in an open source, patentless environment. Anyone can take part and if you input the design of a smart, clean product into the system and it calculates that there is expected demand for such a product, then the production and distribution of such a product would start immediately, no questions asked.
What if I want a steak but none of the distribution centers condone to animal killing? Can I start my own?
Again, because the culture has different values the educational system would make sure that everyone knows it takes 10 times more resources to produce a steak than it takes to produce vegetables of similar energy value. This does not mean that there wouldn't be meat on the menu, it wouldn't be banned. But the system would have to put some kind of limit on meat usage if the resource usage of meat production compromises the supply of food in a way that there wouldn't be enough food for everyone.
As I explained before, needs go before wants in RBE. We would first make sure everyone has the basic needs covered, this includes food, before we start taking into account the special demands of what kind of food. But I really can't imagine meat being a problem. We eat WAY too much meat right now not only from resource perspective but HEALTH perspective. Our diet as cavemen is the one our body is meant for and we didn't eat meat every day back then, it was a rare treat. Education would also have a strong focus on healthy eating habits, because that reduces the cost the society has to endure from diseases based on a wrong kind of diet.
What if I want a television that is disposable and only lasts for a month or two? What if a television that lasts forever would be too expensive for my intended use?
There is no money so it can't be too expensive to you, but it can be too expensive for the system to produce. Expense would be resource usage and energy usage etc. Creating a TV that lasts forever would probably be inpractical for many reasons, but we would try to find the perfect balance to achieve the best resource efficiency for the long term. I'm pretty sure it would be a hell of a lot efficient compared to how we produce televisions today.
What if the "best model" doesn't meet my needs? What happens if my daughter wants a Hello Kitty television? What happens if I want to create a new television protocol that doesn't work with your systems? What happens if I want to charge for this service?
As I said, the products would be highly customizable so it would not be a problem to get a Hello Kitty television. Only one model needed for this, the surface of the TV could be made in a way that it can be anything you want. This is much more efficient than creating different models for everyone. If you want to create a new kind of television you can take part of the designing process, I explained this earlier.
The whole society would be built on sharing, including the information related to production. Everything would be open source and without patents. I imagine this would help innovation quite a bit because nobody would need to start developing from scratch, the current state of science and technology would always be there for everyone to use. The reason people would actually like this and accept that their inventions are shared "for free", is that everyone else does the same and it benefits everyone. You give to others and they will give back to you, someone can develop something even greater using your invention as a start.