You offered a method to reduce the 'perceived' risk of my being a scammer. There's a difference. From my perspective, you didn't offer a method of reducing the risk that I *AM* a scammer. Because that's at 0%. Now, granted, you don't know that. But I do.
Generally, investors expect a higher ROI for risk. Given that I am only asking to be 'entrusted' with less than $300 total, I think that's a bit safer for investors who invest in projects worth tens of thousands -- projects where the investors are on the hook for everything, mobos, cpus, ram, hard drives, etc. In this case, it's only the two most significant pieces -- the PS and GPU.
I figure I will need at most about 40 bitcoins to get started with this. If I could find 4 people each willing to invest 10 bitcoins, I'd be willing to give my home telephone number to each of them!!!