Federal Ordnance M14 Serial Numbers

So today I came across one of those 'old guy dies and tons of firearms for sale' thing. Lot's of nice things,two FAL's,few M1's(some carbines in there) and also a M14SA built by federal ordnance. Now I've done some research and found out it was a chinese one. Serial C-003*. Everything I read says pretty much they are junk so my question is what is the thing worth? Should I get it or pass? I'm also thinking about getting one of the FAL's which was german built. Unfortunately I didnt take any pictures of the FAL because I was mesmerized by the M14. I know, dumb move.
Federal

Federal Ordnance M14 Serial Numbers

Inc

Federal Ordnance Inc Firearms

000377 Highest observed serial number with 7.62-MM marking on the receiver heel. 000440 Lowest observed serial number with 7.62-mm marking on the receiver heel. 000567 to 000708 Within this serial number range, Valley Ordnance Co. Changed the receiver design. A rare M14 presentation model, serial #0010 The M14 was developed to replace four different weapons systems—the M1 rifle, the M1 Carbine, the M3 'Grease Gun' and the M1918 Browning Automatic Rifle (BAR). The intention was to simplify the logistical requirements of the troops by limiting the types of ammunition and parts needed to be. Federal Ordnance M14 and M14A receivers were heat-treated and carburized according to USGI M14 requirements. Each completed production rifle was proof fired, then tested for functioning by firing three rounds. USGI parts and bolts were used extensively in Federal Ordnance rifles through at least serial number 88XX. In 1989, Federal Ordnance.