After struggling with this very build that you are considering, I would answer yes it can be done but definitely send it to an experienced builder to do. I thought I could just pop the barrel in and be good as gold but that was not the case, at least not for me. There was a lot of modification and fitting that was involved. If I were to do it again, some options I would consider would be:
VeprK =600.00
kvar barrel = 329.00
Kreb's custom build estimate = 800.00
OOW 74 receiver
AK-74 kit
kvar barrel
Turn barrel down to 22mm. I haven't tried this but I think it would work out ok.
What I ended up with:
SAR-2 receiver
Kvar 23 mm 5.45x 39 front trunnion
A modified bullet guide
Kvar ak-74 bolt, top cover, bolt carrier
Red Star Arms trigger group
USA plum pistol grip
USA AK-74 modified muzzle break
USA gas piston
Soviet wood furniture.
Shoots well and looks pretty good. I still have to refinish.
My major problem initially was that I could not get proper headspacing using the SAR-2 trunnion and SAR-2 bolt combination. You have to use an AK-74 bolt and that would not lock up into the SAR-2 trunnion.
The point of all this is to answer your question. Yes it can be done but you are smart letting someone else have all the headaches.
www.gunco.net/forums/showthread.php?t=974And another link.
www.gunco.net/forums/showthread.php?t=1035