A rail mount torch will fit on the rail sections at the front end of the handguard, if that places it too far forward to reach the controls then a remote tape switch could be fitted to the top rail or (less ideal) you could fit and offset mount to let you attach the torch further back but still place it to the side.
Ha! The ongoing chase of ever decreasing circles eh?
That said, if it is new old stock I've not really had any issues with mag compatibility with any of my Maxx hops (using PTS EPMs and, rather surprisingly, Nuprol mids).
The TE was the model before the current one (ME) so if it's an actual knock off not just old stock then it's based on an older design.
That said, I have a genuine Maxx TE hop unit and it's been great for me.
I always found that if it was loose enough to not hit the release it was flopping about like a dick in a shirtsleeve! Hence I moved to hard retention/kydex holsters. If you're running the holster loose it would be worth getting a lanyard for the pistol.
If that's the case, I doubt you'd need the extra retention you'd (allegedly) get from a polymer mag holder like that. Esstac kydex pouches are great but you could do worse than look at the standard open top WAS pouches. They have a grippy liner material and I've certainly never lost a mag out of one.
Aluminium isn't great as a conductor and isn't going to stand up to much mechanical abuse in that application. Better to get a ring crimp like @Hudson suggested.
Yeah, he isn't everyone's cup of tea! I met him in person at Red Alert and have been playing with him (oo-er) for a while. He's alright, just liked to wind people up on the internet (and sometimes took it a bit far). He's actually selling off most of his airsoft gear if you now anyone in the market for a tricked up SRS with a load of bits and bobs.
+1 for AltaFlex pads. Before I moved to trousers with built in pads these were my go-to and they never ended up around my ankles. Top tip - try crossing the straps over in an X behind your knee.