I have an SAR2 that I believe is severely over-gassed. Since replacement barrels are difficult to acquire I have an idea, but I need to know if it is reasonably feasible.

I also have a un-used Romanian AKM parts kit sitting around. I'm wondering if it's possible without too much difficulty to replace the 5.45 parts with the 7.62x39mm parts and get a functioning rifle at the end. I know I would have to replace the front trunnion and barrel assembly, use the 7.62 bolt carrier group, and open up the mag well slightly.

Any recommendations or suggestions appreciated.