hello Brian; yes I know what you mean. This group is a fickle lot; a topic or question of seemingly little interest can get everyone 'fired up' and yet a topic that one feel should be of 9at least0 some interest, can result in nothing.
The truth is that people will only respond to stuff they either want to or, to which they feel able to make a valid contribution. Your lunar caravan query (because of its age) was unlikely to generate a mass response and we certainly don't want a stream of "don't know" type postings.
So, anyway, hope that you get the answers to your issues. Sometimes it's a good idea to have a chat with your local caravan dealer or find a specialist group.
All the best
John