the big yards are impossible to deal with, ive always tried really hard to find little "satalite" yards, my current favoutire is Boswel's, they dont give very good money for scrap which is fine as ive never really had enough for it to be worthwhile on the money side, but they keep useful looking stuff to one side.
Mr Boswel's daughter deals with the money, her husband keeps the yard in shape and Mr Boswel himself AKA "king of the gypsies" looks after his heavy horses and gypsy wagons.
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I feel for you my friend, throwing stuff out is never nice but i'm sure you feel a'new now you have a bit of elbow space and you obviously have your priorities in order as there isnt much point holding onto stuff if it means having no space to build anything with it.