WTguy, I think I followed your hookup.
What you've described is pretty much the same as discussed in
Real-World Multiswitch Example - 8 LNBs, 4 Receivers
in the Switches Simplified FAQ.
When you get into that much hardware, I like self-powered multiswitches.
That way, the receivers aren't powering all the LNBs all the time, not to mention the switches, and possibly motors.
Also, it's a nightmare to troubleshoot unpowered switches in as complicated a lash-up as you propose.
And, as you've discovered, all LNBs need to have two outputs, if you are going to support all the receivers.
It's hard to predict what Dee will wind up with at her parents house.
Multiple fixed dishes each with a dual output LNB followed by some multiswitches would probably provide the best user-experience.
But, her folks will never go for a dish-farm like she has at home.
Two motorized Ku dishes would probably push them to their limits.
So sharing a single BUD is no more likely to work than sharing a Ku dish.
She may not be able to have two independent dish/receiver setups.
That would still require the parents to find some common ground to share resources, and a switching layout that supports it.
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