Maloy, you're right, CCCP is phony: this was never an original marking on the SKS. And, as stated by Rock, these faux serials on the right side of the receiver were added here in the states by one importer, CDI, to tap into some imagined market appeal of former USSR milsurp arms. It is common to see, but none too attractive imho.
'New' refurbished is getting increasingly rare, I agree, but you might want to hold out for another if you don't want all the CCCP stuff. They appear from time to time around that price or a little higher. Sometimes a KBI importer marked one that is still in-the-box with accessories comes up for sale at a reasonable price.