I have 2 alt coins but they are worth less than 500 dollars in total. 6 months after the reward reduction I will just extract 2k dollars for the new opportunities fund. I am expecting this will result in still holding an entire bitcoin which I will hodl for my retirement fund or if it reaches the 500k USD level before I may extract 100k and use it to buy 50k gold and 50k silver.
The thing I really like about bitcoin is that they can will stick to 21 million. I am no longer worried about my fiat savings eroding now they are invested in other assets. These are high risk to some, but I view the risk to reward far easier to sleep with than the sure loss with no possible upside of accumulating fiat.
I will be watching this thread again because some members predictions had helped me increase my small bitcoin holdings by weaving in and out. I won't sell even .1 before 20k. This I believe will be in around 8 months.
Overall, I like your plan.
The only supplemental suggestions that I would make is that 1) you consider NOT getting so caught up on round numbers or solely a BTC long term strategy that involves only buying BTC on the dip and limiting your entry points and 2) you consider some flexibility on your 6-8 month shaving off of profits plan..
In other words, I would suggest that create a plan to periodically invest in bitcoin, no matter what the price... (aka DCA) such as $100 per month.... or some other amount that you conclude to be both reasonable and an amount that you will not miss in the event that bitcoin were to go to shit...
Even $10 could be reasonable, though since you already have accumulated more than a whole bitcoin, I conjecture that you could reasonably afford much more than $10 per month for such DCA efforts (and not even miss it... the price of two fancy coffees).
Regarding your plan to shave off some profits at 6 months after the halvening, sure that might be a good plan.. but BTC price growth periods of the last couple of halvenings took well over a year to play out and arguably each of them took in the ballpark of 18months after the halvening to really show their stuff.. so you may be selling yourself quite short with such a short 6 month window, and really do you believe $2k is going to make you feel better? sure, maybe it will, but maybe it would make you feel even moar better if that $2k ends up being in the $10k to $20k region in 5-10 years .. which seems to be a way better investment horizon for someone who is just getting in with a bit more than 1 BTC currently.