RE: Picco P-zero 0.8cc
Tower Hobbies still lists them but has "limited stock" at the much reduced price of around $155.00
I have heard through the grape vine (apparently right from Mr. Picco himself) made 1000 of these engines for OFNA last year and that the factory has no more engines or parts (as or April this year).
These engines where made for the 1/16 scale R/C Car market, and proved to be TOO FAST, as the cars were 'uncontrollable' with top speeds between 50~60 MPH...!
I got two from hopmeup on eBay last summer and the rumour is they sold the last 4 they had about 2 months ago.
You can still get the Sportwerks .05 which is of similar design (but not the same quality as the Picco) and parts seem to be readily available through Horizon Hobby and MECOA is selling the similar Fuji / Toki and also has parts.
cheer, Graham