there are conversions for 280zx turbo struts. It's a major investment since you get practically a whole new front end it's lots of work, but you're in luck because the guy I get stuff made by is in oregon.

the conversion is probably close to $2000 after you've gotten new brakes, adjustable struts, the coil, labor on modifying and rethreading the 280zx strut housing, stainless brake lines, camber plates,etc...

then you need to have it all installed and set up. fun!!!