I would absolutely love to do it; but as someone who's put together a few cars over the years it's hard to watch this stuff without just seeing $$$$$ everywhere into these cars. You gotta be able to fab/weld as you aren't just getting the front suspension geometery, increased lock off the shelf; good suspension is just dumb money; need a real cage between safety and the rigidity needed....that's before you get some reliable nuts behind it.
To boot most anything that 'could' fit the bill to build from, alot of peope want (240s etc); so you start with junk or pay up. It's hard to find something like that in SOLID condition here in the NE without getting spendy. I did more rust rebuilding on my old Supra that I care to remember...
But I agree, its terrific fun throwing around a car like that. Disconcerning doing it on these crazy expensive wheel/tire combos as it's way easy to screw up...but fun.
Much rather get into it than the drag strip....still prolly cheaper than roadcourse duty