Ardent, I don't know your financial situation, but yhe pinned barrel model SKS was designed as a use until broken or worn out and throw away rifle.
For the market it was meant for originally, not commercial, there were few if any armorers, other than a couple of ingenious tinkerers.
I seriously doubt that unless you can find a cheap replacement or broken rifle to rob a bbl from, that you can do the job as cheaply or as satifactorily as just buying a whole new rifle, $125-$150 vs a new bbl $100-$150. Maybe Marstar or Western Gunparts will have a cheaper one that is satisfactory, after all it will cost them at least $45 just to remove the bbl from the receiver, not to mention the jigs neccessary to hold the receiver without ruining or marking it while removeing it, the press etc.
Overall, not really worth the effort. bearhunter