Well That is a great price for the Centaur if it is running and it does look like it is all there it is a 1975 model because Rupp never produced a 1976 run. The body change for the two seat made it a lets call it an very exciting ride for any passenger who's head was up in the wind sitting on a very small seat area and as often refereed to as a ( E Ticket Ride )
The trike fits drivers who are around 5' 10" or below best. I could write you books about the problems the riders had with the Trike in general burning pistons gear boxes that grind up. And no one ever wanted to work on them.
RUPP made it as a three wheel commuter and never refereed to it as a Trike just a 1/2 car 1/2 motorcycle. I produced a run of T-Shirts in 4 colors and changed the art work to call it a Centaur Trike. I sold them to people all over the place. And I gave one to ScooterBoy as a gift that was the last one I had in medium size.
The Centaurs have been converted to VW Power and Subaru Power but very few have survived with the stock two stroke engines.
To me the classic look is the ultimate form of a trike but I just don't fit in the trike. and It would be like cutting up a classic Corvette and making a pick up out of it. Just something I could not do. So it has to go.
Steve