That picture right there is exactly what I was referring to, something just like that! Where'd you find it?
Depending on how badly the frame is messed up, you could use that Toyota front frame idea. If not, then you can do whatever you want, samurai sas, swap both axles for toyotas, or even just cut and fabricate your own stuff into the frame and swap in the front pig from a toyota IFS and keep it independent.
Basically, whatever you wanna do!