Solar array DIY stuff

Hey, I've started up a new hobby; I'm going to be attempting to create a home-built photovoltaic solar panel system for my home. I've been watching prices for commercial solar installations for years, and the price has never been right. The cheapest system I've seen was $13,000, with about a 25 year payback period, which is just far too long. But then I got the idea to search ebay for the components of a solar array, and found that the price dropped pretty significantly. So I ordered some 'solar cells, similar to this ebay item. The trade-off in building your own photovoltaic system is, number one, the learning curve, and number 2, there is a LOT of soldering work. So my plan is to build a couple of panels as a test case, mount them on my roof, and then share the results. If it's a big failure, I'll post my mistakes here, and whatever I learn, I'll share that as well. Thanks, more posts coming soon.