Mike -
I've actually found a lot of amazing info contained in pictures I took on the fly.
Being able to sit down and examine them in leisure, often exposes many secrets I overlooked by simply looking at the dish!
Have had guys detect little distant dishes in some of my pix, ones I never noticed, and then had a great conversation!
So, any shot, with a decent camera, even from far away, may give us enough to suggest a short list of possibilities.
If this 4' dish is white, and round, the first thing that comes to my mind is a Prodelin.... and that's a real dish! -

We find 'em on tire stores, gas stations, etc.
Yes, that would be killer! :up
Brent -
Disagreement is a good thing!
And I consider Mike a good buddy - so pulling his leg it top priority.

If he wanted to bolt a C2 to a DirecWay dish, I'd be first in line to help him.
Now, I might make jokes too, but I'd certainly provide all the data available.
As for your either/or mode of mounting just one LNBF at the proper focus, I like it.
That's the best possible way to optimize the dish on both bands.