Bournemouth's total fees have been painful for a while now. The "trick" of being "handled by one of the resident clubs/companies is about the only way to get around them. Interesting isn't it that it is not so much the landing that you pay through the nose for, as the various add-on charges.
There are ways around the system though.
I took a 3.5 tonne US registered twin there a month or so ago with just me on board. In theory, anything over 3 tonnes requires handling by Servisair, but with some sweet talking, they were prepared to acknowledge that an aircraft arriving crew-only was unlikely to need much "help".
Another funny at Bournemouth is their insistance that N-reg aircraft should not be charged VAT. Heavily queried at the time, but they insisted...
Compared to other "big" airports in the UK, Bournemouth is pretty much in alignment. Places like Bristol, Southampton will part you with similar amounts of money.
A few are noticeably better; Teesside comes to mind. Many are far worse. Luton and Newcastle are obvious examples.