My bro just got some rims from summit racing.
They do sell rims with 2 and 2.5 backspacing, you just have to call the right guy.
Not everyone at summit knows that they sell them, but there is this one guy that you can get a hold of and they will have them made for you. They do not come painted or coated, just raw metal rims.
If you want i can get the guys number or try to.
Amilla