Update.....
Well I got it all up and running today and it seems to work well.
I installed the 8 port controller and the 8 port e-sata controller in the server and the 2 each multipliers in the 10 bay hot swap expansion case (also my HTPC case). Before today, I only could use 7 of the 8 sata hot swap bays in the server.
The 2 TB drive in the expansion case is working great. I was also able to install a second full size bluray reader in the expansion case that is feeding back thru to the server thru the multiplier. The newly installed BR reader is ripping BluRays in about a 1/3 the time the slim drive in the server was taking.
13 TB and counting, 8 empty hot swap bays to go, and 6 1.5 TB drives I can swap out for 2 TB drives in the far future.
18 Hot Swap Bays total (one for HTPC recorded TV, HTPC OS drive is internal and a SSD)
Happy so far!