After some thought and help from rainman, I've decided to buy a Fortec Star
Mercury II MPEG-2 DVB FTA receiver, plus a Fortec Star 36" (90cm) dish, a Power Tech DG280 motor, and
Sadoun Standard Linear Dual Ku 0.4db LNBF.
Here is my setup..
From my Unimesh 10' BUD
C-band LNB, run a RG-6 cable to a 2 way #5-2300mhz splitter. From the Ku band LNB, run a RG-6 to "another" 2 way #5-2300mhz splitter. From the C-band splitter, a RG-6 to the DSR922 (4DTV) unit. From the Ku-band splitter, a RG-6 to the DSR922.
Also from the C-band and Ku- band splitters, a RG-6 to a 4 -way #DiSEqC switch.
This will get me both C-band and Ku band to my Fortec Star Mercury II units so I can watch both C-band and FTA channels.
When I get the Fortec Star 36" dish installed, I will run the RG-6 cable from the dish to a ... new powerful "AB" switch (two ins and 2 outs on the switch) so I can switch to watch either C/Ku band from the BUD,or Ku signal from the small dish.
I think this will work, after some correct placements of the splitters and AB switch.