That is awfully pricey in my opinion as well. Primarily for these reasons:
1. Stock SP motor....you usually see much better motors on high end buggies
2. Cheap seats...for $18k I would not expect to see those cheap poly seats in front and a poor fitting seat in the back.
3. Original VW gas guage...Come on. For $18k you need some nice gauges
4. No full cage...again, for that price you need a full cage
5. Boring wheels
6. No real horn. OK, thats a pet peeve, but for $18 large a real horn isn't unreasonable.
7. Claims "high quality" paint job...look at the fender in his link. Lots of peel. Here is my "garage quality" painted fender:

I sold my real Manx for less than 1/2 that amount.
