Dauntae

I had a similar sized Sukhoi in the past and it was classed as a 60 size and flew nice with a 91 4-stroke I think it was a 59" wingspan, depending on how light it is a 46 might do it but may not have the high power for some of the maneuvers a plane like that likes to do. The first thing that gave it away as a Sukhoi was the long thin landing gear (real one is the same) and those funny little wheel pant things they put on them. Good luck with the fabrication and you should have a fun plane, Careful though, Sukhoi's like to snap roll if you give too much elevator but they tumble all most as good as a Cap.

Dauntae