I got all the baffles siliconed into place, now just going to leave it for a few days so it completely cures. I'll properly end up waiting until next week end to get it put in and running.
I took a few shots to show how much bigger the new sump is going to be.
My existing set up
(the return area is so small that I'm now topping it off twice a day)

The new sump set in place in front of it
