I am also looking to put a mini tub in looking at a Detroit mini tub. If anybody has done a mini tub looking at how much did you have cut off the rear end. And what size tires you we're able to put in?
The Total Cost involved four link is a TCI 4 link, I installed one years ago and pulled it all out and put the CBR four link in and was a much better ride hands down. I cut the stock tubs and widened them to the frame rails and fit a 285 on my 65. With the frame cut into you should have no problem fitting a 295 in the back.