Hi Hollywood,
Welcome! I ended up just attaching a chiller to the accessory port. I'm planning to add a sump / fuge, but will do it through an overflow where the water cooling fans are instead of trying to run a few items through the accessory port. Tom (above) was very helpful with this - most know more than me about plumbing for sure!
Tom, I just saw your barnacle blennys in your other thread - those guys are cool looking with those red eyes! Nice fish - never heard of them before.
BTW, planning to do a real update soon... Things are going great in the tank right now though. Only issue is my crocea clam has been looking a bit sickly for some reason, but might be starting to turn around. Take care,
--Kyle