I picked up a couple of dew heaters from ProAstroz. These came with a built in controller which is very handy but required a bit of snipping and re-soldering to work with my current configuration. I think it's turned out well and using the ASI Air pro, the overall solution is pretty neat from a cabling perspective. I could reduce it by powering the mount from the ASI Air, but I think I might keep things independent.
The last piece of the puzzle is an EAF...
I have yet to take the rig outside