Ok, so a couple of things are weird on this car. Get rid of the silly "Spider" stickers, redo the seats in leather, and lower the asking price to $50k. The car seems well built and has a nice TT motor.
Yeah, the whole conversion into a convertible takes away from the looks and rigidity. However someone buying this car probably isn't looking to track it or drive on the twisties. This car is meant for cruising the boulevard and the occasional high speed run on the highway.
I say lay off the guy selling it. We all know it is out cup of tea, however he likes/liked it and trying to honestly sell it. If he was trying to hide something it never would be listed for sale on Prime.