Looks like your the man with a plan Fella. I like the res too. I see you have some epoxy there. Is that what you used to glue the res together? I used a waterproof epoxy on my first res and after a month it started to leak at a corner. The next one I made, I used an acrylic cement that chemically bonds the acrylic. ISP Weld On #16 it was called. If it is a product someone else used and it works, then you have no worries.
I mounted my BIX above the PS on my LianLi PC70 too but ducted to case side for intake air instead.
An alternative to aluminum ducts is thin plexiglass. You can score it with a utility knife and break it off at the corner of a bench. Use acrylic cement to glue it together. I used a frosted plexi so it diffuses the light from the lit reservoir, looks cool at night.
I made a rectangular reservoir out of plexiglass and mounted it at top center of case with laser lights under it. With the BIX mounted on it's side, I need to do one slight case tip to get all the air out of it upon initial fill.
I have 3 SCSI CD ROM drives (40plex, 12/10/32 burner and DVD) and only two SCSI drives, so I mounted them in the upper bays and removed the drive carriage. Thats where I put the pump, though it could go into the lower 5.25 bays if they are open. The LianLi's are deep cases, and even with high CFM fans not much air makes it to the MB and expansion cards. Since I don't prefer side fans, I made a smoked plexi duct from the front intake and stacked the fans at the edge of MB tray.
The LianLi PC70 link in my sig takes you to a page of more photos of what I have done so far. Click on images for enlargements.
Nice job! Anxious to see the finished case!