Nice gun! I love a classic SKS.
Here's a word of warning that I'm sure you will also hear from others - for the love of God and all that is Holy - DO NOT try to fire this gun until you have broken down the bolt, removed the firing pin, and cleaned the FP channel with heavy solvent and big-bore pipe cleaners. You mentioned cosmoline, and it can stick the FP in the forward position leading to a runaway full auto. In practice this event is not as fun as it sounds in theory - a guy died at Chabot a few years back when this happened. You have no way of knowing for sure if a previous owner or the seller has done this - CHECK IT YOURSELF.
And then get out and spend some sweet lovin' time at the range with that gal! HAVE FUN!
The one thing worse than defeat is surrender.