I have a potential excuse for flying into Bournemouth later this month for a work meeting so have done some proper research. Looking at the airport website, the GA page was not easy to find so here is a link:
http://www.bournemouthairport.com/bohwe ... alaviation
The only agent allowed is Bournemouth Handling
info at flydorset dot com
For a 152, landing, all-day parking, handling (including coffee and a lift round the airfield to my meeting) they have just quoted me, as near as makes no difference, fifty pounds. About thirteen pounds less if parking for less than four hours.
I didn't get the exact figure but for a Warrior, it would be about another twenty pounds.