Allpro used to have a kit, Trialgear
![Puke :puke:](https://board.marlincrawler.com/Smileys/marlin/puke.gif)
has one, I think skymanufacturing has 4 kits available. Given your concern over height of the frame to comply with Utah state law, you might consider building a 2wd instead of your 4x4. The 2wd frame is designed differently, and allows for a lower lift when done. A buddy built this '92, and with 37's it had nearly the same entry height as my '90 IFS on 33's.
![](http://img.photobucket.com/albums/v33/Snowtoy/Trail%20Pictures/100_0920copy.jpg)
The lift used was rear Toyota springs upfront(moves axle 2" forward), and a set of chevy springs with 2" block in the rear. The 37's rubbed a bit, but it was a very stable rig on the trail, and easy to climb in and out of on the trail as well, and no issues with frame-to-trail obstacle clearance.
![](http://img.photobucket.com/albums/v33/Snowtoy/Trail%20Pictures/0868_zps041e2a5d.jpg)
Same tire and rims on the 3rd gen Runner he built after the '92, the white rig next to it was another 2wd conversion on 37's if I remember correctly.
![](http://img.photobucket.com/albums/v33/Snowtoy/Trail%20Pictures/MoonRocksJan07.jpg)
What the front axle moved forward 2" looks like.
![](http://img.photobucket.com/albums/v33/Snowtoy/Trail%20Pictures/28_zpsf2946cfb.jpg)
If I were in your shoes, I would build the '93 to a point to make it as capable as the IFS can be, then once you are sure you want/need the SAS, look at buying a built rig, or build up a 2wd to run the type of trails you find yourself running the most, and tailor it to fit your needs.