Longbow,
Since you are asking, personally I think that would be a really bad idea. The Daewoos are good rifles but as krochus pointed out, parts are very hard to find since the rifle is no longer imported.
Don't panic over the ammo. You can still buy 7.62x39, just not at the price you used to. IMHO, panic buying is probably causing more problems with supply and price then anything else. Hopefully it will come back down and all will be right in the world.
If you want the Daewoo, buy it without a trade with the understanding that their may not be replacement parts now or in the future. It is a shame too, the Daewoo is a nice rifle.
To sum up. I would rather have a working rifle that takes expensive ammo then a non-working rifle that takes cheap ammo.
Cheers