I'd personally advocate against any AK based off the TM design. It was good back in 200(4?) but when LCT and VFC came out with their pinned and proper takedown construction TM had no way against them,same goes for clones. Difference between a sh*tty TM style CYMA and a Good VFC style CYMA is only about 40£,30£ since Taiwangun is having a sale.
Also check out the Dboys RK()W series,make sure the gun has W as a suffix since it will be 80% steel compared to CYMA 50% steel.
EG

boys RK10W.
They have very good externals,actually riveted together,paint comes off easily,however this is good as the real AKs are CED coated,not painted so you can refinish easily. They are VFC clones,very tough externals construction. Main weak points are of course the ever so loved china pot metal,such as the rear leaf sight,gas block and stock trunnion.
Internals are Usable,but not as good as CYMA. They are pretty unreliable I admit,and hop is diabolically sh*t. Dboys is a good option if you want a cheap mostly steel AK body kit,don't expect reliability.
Dboys is more for Russiaphiles who can do internal work,but I'd say go for CYMA for dedicated skirmishing and usability OOTB.
JG AKs I'd say avoid. All TM based design and they have reliability problems with the gearbox,along with not so great hop up.