lift 90% done now for tires on stock wheels

My lift is 90% done. All that needs to be done is the front track bar and a 1 inch transfer case drop, tomorrow night, the rear trackbar and rear shocks (frozen bolts) Wed night. So now all I need is to get larger tires for it. I want to keep the stock 15X7 rims as funds are low for a complete wheel/tire combo but want to eventually get new rims when funds are in my bank account. Any one here have any ideas as to what size I can go up to? I'm looking at 32's if I can make them work with the stock factory wheels. Let me know.

How much lift do you have? And what gear ratio do you have?

2.5 inch lift with 4.11 gear ratio.

33s on your 7" rims till you get 8" rims, 32s too small, waste of dough.

You can get some pizza cutters. 33" should be doable. With such a narrow rim I wouldn't go for any of the 12.5" wide ones. That is probably obvious. You can probably get away with 11-11.5" wide I think. Don't take my word for it though, I am a newbie.