Fox Wheel size help (Please)

I just bought the 5 lug conversion kit. Not the SN-95, just the axles and rotor set up and would like to buy Weld Drag stars or Drag lites.

Question: I want the widest 15" set up for the rears without modifying or rubbing.
Also the skinnys in the front.

Wheel spacers for the front? offset and tire sizes for all

Any info is greatly appreciated

Mike
1989 Mustang GT

Thanks for the info.

Any idea on tire size?