The price is about right. I have a CETME also, same CIA receiver. I took mine to AZEX for a full re-do (OD green ParKote, tune action, and bring the Alder wood stocks back to the light color they were when new). Should be a beauty when done and only have about $550 into it.
The Spanish Cetme was developed in Spain by a group of German Mauser engineers and is the rifle H&K copied under liscense to make into their famous G3 and eventually evolving into the HK91. Good family tree here guys. Same delayed roller action. I can't wait to heat up the barrel on mine.