Parts for the EVO trainer engine are not too expensive. Even a whole new casing is only like $15. I had to replace a crankshaft in mine last year and it was only $15 or so.

http://www.horizonhobby.com/Products...prodDetailTabs

The other problem I see with buying the new DSM2 Alpha will be that it is not a computer radio and it has no model memory. I'm not sure how you would bind it to the Sukhoi and still be able to fly the Alpha. I'm sure someone with more Spektrum knowledge can help you here.

But it does sound like you are heading towards 2.4Ghz, so there may not be much savings by trying to salvage gear from the Alpha, other than servos.

Good luck