Out of extreme boredom while drinking my morning coffee I gave it some thought.
Trunnion - New Production Forged Polish Import $89
Bolt - New Production Forged Polish Import $79
Bolt Carrier (Body) - New Production Polish Import $79
Piston - Chrome ($8-$20 depending on config)
Recoil Assy - $15
Barrel - (CHF/CL) $159
Gas Tube $15-$30 (Depending on config)
Dust Cover $20-$50 (Depending on config)
Trigger Guard/Magazine Catch & SS $25
Rear Trunnion $20-$120 (Depending on config)
Front Sight/Gas Block $40-$100 (Depending on config)
Rear Sight $30-$60 (Depending on config)
Handguards/Grip ($25 to infinity depending on config)
HG Retainer $20
Cleaning Rod (if desired, $8)
Receiver $50-$125 (Depending on config)
FCG $20-$100 (Depending on config)
Rivets $6
So, a "base" parts cost using Polish (Think Beryl, etc NOT that Pioneer crap) parts would be $680, but the sky is the limit depending on exactly what you'd want.
Picturing an ideal (to me anyway) AK74 pistol setup would probably be a bit more.
Bulgarian/Russian style, CR type, 10.5"-ish barrel, 24mm combo block, AMD length gas system, 4.5mm bulgarian side folder (AK100) trunnion setup (brace or leave it as-is empty and if SBR is desired, it's as simple as popping out a pin). A few inches shorter than the Atlantic one, but a few inches longer than a AKS74U so a happy medium I think. Similar to what PSA offers, but actually using imported "real" parts, and a little bit shorter.
If you put the same cheap US "plum" handguards and grip that Atlantic uses on that one, they would be very similar guns. Minor differences in aesthetics, muzzle thread pitch, and length, but generally similar guns.
Trunnion - New Production Forged Polish Import $89
Bolt - New Production Forged Polish Import $79
Bolt Carrier (Body) - New Production Polish Import $79
Piston - Chrome ($20 short)
Recoil Assy - $15
Barrel - (CHF/CL) $159
Gas Tube $30 (Short)
Dust Cover $20 (Standard, AK74)
Trigger Guard/Magazine Catch & SS $25
Rear Trunnion $100 (4.5mm Folder with hardware)
Front Sight/Gas Block $125 (24mm Meridian)
Rear Sight $30 (Standard AK74)
Handguards/Grip $25 (Standard Black Poly AK100/AK74)
HG Retainer $20
Cleaning Rod (if desired, $8)
Receiver $50-$100 ($50 for Morrisey 100% FFL)
FCG $20 (Standard Euro import military trigger group)
Rivets $6
That config comes up to $900 in parts, plus all the various shipping from the different vendors etc. And thats just a config that I think would make a decent AK74 pistol, opinions are like assholes, we all have them. (Oh, and a 24mm short AK100 booster for the muzzle, so $25 for that)
Would require some lathe time (easy enough, reprofile one journal, cut, crown), but otherwise a pretty standard AK build process. I've done weirder and more difficult ones than that.
Just saying, using that as an example if you could have it built for less than $800 in labor (and $800 in labor for that would be rape), you'd come out ahead. If that makes sense.