RE: ARC Jupiter
Thunder Tiger did have a Cessna listed at one time but it wasn't the one from Model Fly / ARC. I heard that they were going to get more Model Fly but don't know for sure that they have.
I'd suggest trying to get hold of them and ask if the Cessna is from Model Fly. If it is it's a super plane, handles a 60 real well and with a little thought a 91 fits right in ( a little tight but possible ). I liked flying mine with an OS 91 and a 12 X 6 3 bladed prop. A little warning here. The plane is NOT designed for areobatics and if the wings are stressed they have a tendacy to want to buckel just outside of the wing joiner.
If you can make a different wing joiner ( longer about 6 " ) I think it would be fine. I used to stress mine a lot and they did start showing slight bends in the plastic but I NEVER did fold one. Saw a major flex once that really got my attention and made for a quick landing. I Loved the plane both on floats and wheels and wouldn't mind having another one if I had room and a few less planes.
If it is a Model Fly and you fly it like a Cessna ( or a little harder ) I think you would ENJOY it. ENJOY !!! RED