Possible Ackie Enclosure questions

[ttreptile1]

Hello all, new here. I am just recently returning to the herp hobby and have been struggling to decide what I want to get back into breeding wise. I had a ton of experience breeding pythons and Indigos but no monitor experience beside a pet Savannah from a long time ago. I decided to take the plunge into monitor breeding and am pretty set on Ackies as my first project. Here is my question. As seen below in the attached picture, I custom built a side by side 4'x2'x2' cages with center breeding door. Was going to do Woma pythons but changed my mind.

Looking at the pic, should I open up that center breeding door and make it one large cage or keep it as is? Should I heat only one cage with dual halogen and leave the other the cool cage? More importantly, is this cage setup good enough for Ackies or any other dwarf monitor kept in pairs/trios? Any thoughts or suggestions would be greatly appreciated. I want to make sure this setup is perfect before even thinking about adding any monitors to it.

The cage still needs a lot of work. SO I figured I should ask now before making any more decisions. Any thoughts or suggestions would be greatly appreciated.