Ive seen the radius arm SAS on several short wheelbase ford trucks and broncos and they flex fairly well. But out of the trucks Ive seen I have been more impressed with the leaf springs. Also getting the steering setup properly is going to be much harder with the radius arm suspension. I guess it depends on what type of wheeling your goinging to be doing with it. If you want to do a lot of high speed type dirt roads and do really well on the beach the radius arms and coils is the way to go, but for trails, rocks, and mud Id suggest the leaf springs. I was going to swap in a 44 and leaves on my 94 ford but came accros a 78 f250 to work on instead.
