I'm about to embark on my frankenbike as well. I'm using an old rockhopper (with small but horiz dropouts) and my goal is to use a BMX block stem and a handle bar from a 24inch BMX cruiser. The idea is to try to build a bike with just what I have already in the garage. If this stays true then it will be a SS but if I can swing it, I'll fix it. This will strictly be a bar bomber. I'll post pics when I get some parts together.