Does anyone no about actions or the where abouts in yorkshire?
You need to pop into a newsagent on Saturday and buy yourself a copy of the Yorksire Post. The last page or two of the "Country Week" section will give you exactly the information that you want.
If you can't wait until Saturday, have a look in the yellow pages of a telephone directory for "Auctioneers" and phone round for details of sales.
Generally the same auctioneers will handle house clearances, stock liquidations, police items, etc..
Remember though, that if this turns into a business, you will need to inform HMC&E.