A couple of things. First, congrats on your rifle purchase. While the price seems high to me, I've been watching the market and think you did fine on what current market value is, especially living where you do. Who knows where this market is headed?
To clarify, that is not a rifle that was made for the commercial US market. If you could show us a pic of the left side of the receiver, it would help as far as IDing the rifle better, however, that is a 100% milsurp Chinese Type 56 SKS. There were some specialty rifles the Chinese marketed to the US like the Paratrooper model, Cowboy Companion, SKS-D and SKS-M but the rest of these like yours were no different than those they distributed to military/para-military organizations and stocked in arsenals in China, and in fact that is where these came from. Norinco, ChinaSport, Polytech were simply exporting companies they formed to sell these in the US, while they could. YooperJohn, Survivor's SKS board and milsurps.com all have excellent FAQs about these and tips about IDing different eras of production, etc. FWIW I bought an identical one (same package and packaging) in May, 94 as a back up SHTF gun. Yeah, only $124 back then too, and that was with the 94 AWB looming. Nothing wrong with Chinese SKSs, they simply lack the fit and finish of some of the other ComBloc SKSs and collectibility but everything is relative.
Mine came without the bayonet too. I would caution you to familiarize yourself with 922(r) BATFE regs about semi-auto rifles imported after 1989 which this undoubtedly is. From what I can see from the pics you posted, a spike bayo with mounting hardware would be appropriate and you can buy them on eBay for $20, HOWEVER, mounting that bayonet would put you in violation of Federal law but owning it wouldn't. Also, other modifications would potentially violate 922(r) too. Apparently the chances of being prosecuted for one of these violations are slim to none but now you know and should familiarize yourself with the law.
Enjoy your new shooter and hopefully we'll all be seeing more ammo availability in the near future!