The good thing about RUF, besides being cheap, is you build the pack for desired lift and flex. Nothing wrong with TG though IMO. I am pretty happy with my 4" springs as they are finally settling some.
And I am dealing with the same frame issue on my '87. I didn't see it til after I bought it (dammit). It was poorly repaired and a stock chain loop was welded in place. I cut the loop off and a chunk of frame came with it (dammit). I'll just patch it and plate/gusset. The crossmember is straight enough, but I'll use other points to measure off and get the spring crossmember square.
__________________
2007 Tacoma with cool things and stuff
1987 4runner with cool things and stuff and such