Surely the speed is down to how you set the machine up? A local friend used to have one setup in his hallway and I remember having many a manic game on that one trying to get the damn ball under control. I'd probably pick one up in the future if I ever see a decent project for the right money. The art is definitely better than the gameplay, but still though, I might have one someday
The guy trying to sell the base on ebay for 400 is just being silly, it's worth £100-£150 tops, every piece of metalwork top and bottom of the machine is rusty, the apron is knackered, significant watermarks in the bottom of the cab.
The head is fairly unique to the machine with the 2 layer backglass and infinity lighting. After buying the boards and glasses and making a head, you might as well have spent the money on a working machine, and thats before you refurb the playfield and deal with all the rust.