wow tolip you really think outta the box when it comes to designing wc'in don't ya? Do you often have nightmares of leaks? or what it would look like if your whole setup failed all at once? boy i'm pretty sure there would be fireworks everywhere
not hoping that happens to ya 
and i'm sure your extra extra careful...wc'in to expensive for me to play with...but it sounds like your one busy busy man tinkering around with all those jups n neps...i bet i'd be in nerd heaven if i had your workshop area to play with...probably wouldn't know what to do with myself heheMy 'workshop' is just a wire rack in my kitchen.
I live in a small 2 room shoe.
My main design goal for first stage with the Nep cooling was remote heat exchange.
Another main factor was low downtime.
I built the loop and modded a cube at a time while the other 4 hashed away.
It is very much a temporary prototyping environment.
The Hoopiter had a similar long transition into a neat case.
If they runnin no hurry.
No nightmares. the Nep system is just over 3L of H2O.
YMMV