I don't think I'd pay anything for it, if I had to take it down.
Now, if it was neatly setting in a parking lot, I might consider paying $50.
But, I'd want that NPRM and the blocks, the dish, mount, and the LNB canister.
It depends on what your needs and desires are, I guess.
I found several around my area, but once I located an 8½ foot Birdview solid, my interest in the 6' dishes dwindled.
Also, I always thought motorizing it would be a challenge.
But that depends on how big your junk box is.
We have members who'd have that up and trackin' the arc in one day, just from spare goodies they already have! -
edit: try a pressure washer, or one of those do-it-yourself car wash places? (as you drive the dish home)
And wear a rain-coat! -
I suspect some research on what others have used for soaps and chemicals might be helpful.
And maybe a long-handled broom?