most Dealers have contacts for the owners clubs for the RVs they sell - you could try contacting a few and see if they do. Failing that, email Bailey Caravans through their website - they have a contact form and ask them if they know of any clubs and in case they don't, ask them to put you in touch with their Dealer network - they will be able to send you an email excel type document with all the email addresses.
Then do up a form letter asking each Dealer if they have a Bailey Caravan Club contact and then just copy the same form letter onto each email you send to each dealer - you could even cc them if you know how to copy info off the format the Bailey importer sends you.

You may be lucky and a Bailey van owner who belongs to a club reads this post on this Forum!

Good hunting )