If you arent shy about cutting the sheetmetal, you could do it now. My truck is IFS still, and I have 37" MTRs on it with some trimming of the fenders. It doesnt rub at all in the rear, and the front only rubs when compressed. I just need to trim up some small peices and it wont. I would say SAS it too, and then worry about the height you'd need. I want to do the SAS, but no $ no time
