Thanks for the replies everyone. It seems like there is definitely a market for these at a reasonable price. Maybe we can get a group buy going...? Although, it wouldn't be all that hard to fabricate the current one to work, especially with the nice diagram (thanks "rb26powered74zcar")! $95 from Ross doesn't sound to bad, but I'm still surprised someone has produced one cheaper.
rp975 - Looks good. Not sure if it would work on mine though, I have a fuel cell that comes pretty close to the back of the diff. I have to measure to be exact, but depending on how far the brace sticks out toward the back, clearance might be an issue for modded applications.
Good stuff, thanks!