Derek,
Do your homework. Some car with mods are fine, some are not. Mods tell you, you need to ask a lot more questions about the car, and a dealer probably doesn't know. (steering wheel isn't really a Mod, but there is probably more mods if it has a different wheel)
You said, "only asking 45k for it". That tells me you are probably willing to pay that or a little more. Every few months, another great B/W GTS pops up for sale somewhere. There is a very nice looking 97 on Ebay right now. ( I don't have anything to do with the sale of it ) but it has a few less miles on it, very tasteful mods, and reserve is already met at 45,100, which is a great price for any GTS in good shape, especially a B/W one. It looks like a great car. It would be hard for me to buy a car from Ebay, unless I saw the car, etc. but it's a place to look at and compare. There is a 96 on Autotrader for 51k, 11k miles, private owner, also sounds like a nice one.
Nice to find private owners who know the car. You can talk to them, check the car out, see if you trust the guy, etc.
When you are spending upwards to 50k or more, you have to be patient.
All of this, of course, is just my opinion. It all depends what you want. But don't jump at the first B/W that looks great on your computer, especially with an aftermarket steering wheel...
If you lurked for a long time here, you should lurk even longer in trying to find the right 97 GTS. Have fun searching !
Venms96