First post here - I figured it was time I get my project up here, but wanted to make sure I had something that would work first. It's been going on and off for a while, but finally making some good progress.
1993 GS500 with the front end from a 2000ish DR650. All of the detailed info is here:
http://advrider.com/forums/showthread.php?t=738523Here's how it currently stands:

Still a long way to go. I was planning on keeping the rear wheel, but am now considering swapping it out for the rear from a DR650. Lot's of sanding and painting and finishing to go. The bike itself is great, despite how ugly it looks. 1993 with about 6k miles on it. Spent years sitting outside. I had it idling with about two hours of work. It's been dropped probably 5 or 6 times from years of storage lol, but doesn't look like it every went down moving.
This might be of value here - here's a good pic of how I ended up using the SV650 rear shock. I tried repeatedly to get it to work at full length, but couldn't.

As I turn towards working on the GS instead of the suspension conversion, I'm sure I'll have lots of questions here.