Man, that's too much to deal with. Hope you get a resolution.
Doc, who had an IFS lift kit, also had a lot of problems with CV's and driveshafts in the front. I wouldn't be surprised to find out that at least some of you problems are due to design deficiencies in the lift or it's installation as well.
Although, it's always possible to get a "lemon", even in a vehicle that is otherwise known for being decently constructed.