I think Rob Thomas gets $400-450 for his kits... not trying to steal business form him, but if you can cut/weld, you can do your own for a fair amount less... and if you use a box style crossover like he does, they're pretty easy to put together. you're still lookin' at a full day's work. but if you're looking for a bolt-in deal, his kits are highly talked of, and look nice.
Forrest