I have the Goldberg Sukhoi with a Moki 1.20 on it.

It's an OK airplane - but not great. It needs a 1.60 FX up front, it needed a fair amount of differential to get axial rolls, it pulls to the belly in left rudder knife edge - even thou I am a little nose heavy. If you want to stay with glow I would recomend the GP Gene Soucy Extra with a 1.60 FX, they seem to fly better than the Sukhoi.

What the other guys have told you is good advise - you really will save money in the long run with a DA50/Patty combo.