Do any vendors buy VHS tapes and machine? Also wide assortment of hard cover books?

You never know who will be there. But mabe get a table they are fairly cheap.

Hard cover books maybe. Very doubtful about VHS tapes.

Maybe, you should investigate

Doubtful. VHS tapes are outdated and most people donate or throw them away unless you have something very rare and that, you'd have to search the internet for.

Call them