you dont need experience with riveting, simple riveting tools and jigs dont cost much, many parts kits are still inexpensive, i believe the AK-63D kits are the best value right now, and green mountain makes some great barrels that dont cost very much
ill trust my own experience in building my own over anything shotgun news says, and toth tools sells simple hand tools that will do everything you need, rivets, headspacing and installing the barrel, installing the rear sight block, handguard retainer, gas block, front sight block, theyre still so they take well to any kind of finish you want to put on them and tons of furniture choices, can even get an AK builder trunnion which gives you a built-in ACE modular interface for folding stocks and buffer tube adapters