Personally, I'd probably sell it. But I already have an IB dated rifleI know. I thought it was a century arms from the counter. I was shaking doing the paperwork. I believe I will keep it. From what I can tell it’s original other than the hand guard. The bolt, barrel and receiver all marked IB which is a 1981 rifle. I got lucky. Never know what you will find.
This is an excellent point. At just south of $700, the OP has a lot of room to invest more money into it and get it really set up as a work of art.I'd keep it, send it off to someone like tsc and have them install the paddle mag release and remark it to g3. That or have it converted to a g3k. Either way you'd end up with the gun looking beautiful and new for less than you should have paid for it as is right now.