I gave $325 out the door about a year ago for a Cetme someone had spraypainted with green Krylon, including 4 Cetme (not G3) mags.
Brand new wood stock set, including metal pieces: $25
Stripping the green paint and Duracoating it in Socom Black: $90
All total, I have around $440 in it, and it's a very reliable, accurate little gun. I did get lucky, but like rbernie said, good Cetme's can be had.