The only look that suits a GT5-S is an original campi 10 spoke in my opinion. The later wide body cars sit significantly lower than stock earlier Pantera's, and the same wide body ride height requires super low profile tires to achieve with a large wheel and then just doesn't look right.
If you are purchasing a GT5-S retrofit kit, it consists of steel flares additions that are cut into the existing fender, so be sure to get your chosen wheels and align everything prior to welding. There are some odd looking fender wells out there from folks for whom wheels were an afterthought.
That said, I do have set of Kodiak Motorsports standard wide body offset wheels I would sell. Never mounted on a car they have Toyo R888 tires mounted.
Julian