NTG-D "3 by 3" (3xcUAC5, 3xcERML, 3xcSPL, TC1)

Won't run too hot as long as you aren't trying to fire the ERMLs and SPLs at the same time. If you're really worried about heat, change out ERMLs for SPLs until it's cool enough for you.

Note: Pure theory as I didn't buy the package. 3 UAC5s plus laser backup works great on my EBJ.

 

In my smurfy it's impossible to fit 3xcUAC5 in one arm because I'm 1 slot short.

 

The other arm just has a checkbox for the lower arm actuators (disabled) which makes it appear like that

Here's an alternate version from me that is possible (if you want cERML, just swap out some cSPL, they're the same weight. I prefer the damage-to-heat ratio of SPL).