hi alan..
we all start out as newbie's and wonder exactly the same thing..
when we started out a few yrs ago we went round all the caravan dealers we could think of locally and asked them exactly what caravan our car would tow, ( then a renault scenic megane).. they all showed us what was available and out of the ones we narrowed down our choices..there are so many options and choices it took us a few weeks.. my idea was to see what we liked at a dealer then try to buy the same van and layout private, hopefully saving ourselves, or rather myself, a few quid. but seeing as i was boss then, i was told we were buying the first one my ex wife fell in love with.. i firmly put my foot down but was just as firmly put in my place... bloody women eh.. anyway our first van was a fleetwood garland 5 berth, great little van..
we never used the shower in it, opted instead to use the facilities on site..it had everything we needed.. and we had it many a good yr..my advice is to look at dealers and ask them to show you the ones you can tow and then just narrow down your choices till you see one, then look private for the same van..
not very good advice really but i hope it helps nevertheless...
happy caravannin
daz