I am NOT the person selling this, and I don't know who is selling it.
I simply spotted this ad on the local Craigslist and I am passing it along in case anyone is interested.
http://dallas.craigslist.org/dal/cto/5813578267.html
Either an Austin America head or MG Spridget, the holes for the air injection are plugged. I bought one just like this only bare last month for $50, if it's ready to go it seems like a reasonable price....but it's not exactly a bolt on for a 948/998/1100.
Yeah, the seller doesn't seem to understand what A-series engines it will fit.