Hello 'recordguy',
Why not take a moment to search the titles of your records on ebay? That will provide you an idea how many of them are available at any given moment, and what the price range is.
The only other person who could tell you approximately which are the 'hottest' titles would be another vinyl dealer and he's not likely to tell you, is he. As in most things in life, the best helping hand is usually your own.