Update, big day started Friday.

RO only puts out about 2gph and I'm scared to leave it on when I am gone or asleep so it will be awhile.
I am using a "loop manifold" for my closed loop and just a single or dual for the sump return.
1.5" durso pipe in the overflow.

Just noticed my reflection, great camera work.
I was going to order some premade doors but decieded to take a crack first.

They turned out pretty good except I got a little crazy with the glue around the miter cuts. I could sand them back down and restain but...
Here are the pumps/plumbing so far...
Rubbermaid sump and skimmer.
Lastly my electrical panel.
I didnt thank about using outdoor boxes so I sealed the front plates and holes in the back with silicone.
My liverock should be in Thursday.
Joe