Thanks for all of the replies, guys. Anyone using a Kelty Noah? Seems like they may be a pretty good option.
I had thought about the DIY route, and I'll look into it further, but I'm not sure I'd trust a tarp I had made. Haha! I'm normally all about DIY, but I've never used a thread injector.
Soldering iron? Many hours. Sewing machine? 0 hours.