Best of luck at that price. I'm about £500 deep in my period-accurate M16A1 build. Once it's done it'll be full upgraded TM internals with a mix of TM and G&P external parts.
Also: you might want to post in the Classified section under AEGs wanted - this is a discussion section rather than for buying and selling.
The JG/GE ones are polymer bodies but saying that I’ve got the GE A2 and it’s not ‘creaky’ or ‘wobbly’ at all , I’ve a couple of ancient metal bodied guns that rattle like a robot with Parkinson’s compared to it ! ?