The Saito FA-60 twin engine is barely powerful enough to get a 5 pound trainer in the air let alone a 66" 20 pound biplane.

I think the plane may have been powered by something like a Saito 270 or 300 twin, or maybe an OS 300 twin, each costing in the $800.00 to $1000.00 range.

BTW, the guy that said that your plane flew 250 MPH (written by Marienwolff in a PM to me) was really dreaming. Maybe 100 MPH, or maybe he was thinking metric, but I don't think so.

Looks like you got sold a bill of goods.