[gonogo]

Mostly Izhmash factory and maker's stamps on the left side, the right side has the importer's receiver scrawl, F S (fire safe) and caliber. The 3 digit number behind the charging handle should also match the number stamped into the bolt and they should match the last 3 digits of the serial #

The "safety warning" you see plastered behind the rail isn't popular and wasn't necessary for import, most AK's imported today don't have that, except Zastava unfortunately. Later Saiga's don't have that warning

The tiny factory stamp to the left of the trunnion serial # is the less desirable one, the other is the official Izhmash logo, a triangle with an arrow inside

The features I prefer when looking over a Saiga Sporter to buy are:
16" barrel
Dimpled receiver
No receiver "billboard"
Drilled and pinned FSB, GB and RSB
Izhmash triangle stamp on the trunnion
The least amount of non-essential scrawl

 

[gonogo]

Doing the work yourself and keeping it simple with bolt-on parts, the Carolina Shooter Supply Saiga de-ban parts are inexpensive:
trigger re-location parts
trigger guard
nylon hole plugs
bolt on handguard retainer
bullet guide and install kit
gas tube
pistol grip
pistol grip nut and bolt

You should be able to buy a nice Russian AK-74 wooden stock and handguards here in marketplace.