How much should I pay for Tuff wheel, button and adapter?

It is hard to find a nice original tuff wheel. I would have to take a look at it first. Some of the repop's are nice and some aren't. Just do your homework and get the better version. You are right about the adaptor. I just sold one for $100 and they still can be found at that price. You just have jump on them when they come up. Good Luck!

Yeah, the adapter is what I was initially looking for but then when I found the set then I wondered if it was worth it.

Whats the part number on the adapter kit?
Why is it special?

The adapter is an original Chrysler part, but I don't know the part number. What's special about it? I guess it's because it acts like a spacer for the "flat-ish" steering wheels. Other than that, I don't know but it's just made to work and that's good enough by me, I guess.