I think you may just want to buy a complete AK
If you absolutely want to play with building out a parts kit, Romanian are probably still the most readily available but no longer cheap.
WBP also sells Polish spec "parts kits" that are all new parts ready to assemble. Iirc both Arms of America and AK Builder typically have these kits ready to buy
Just understand if you don't already know, there is a bit of a tooling investment up front to build an AK kit