Niner Mike,
Yes you can, and I think there are more people out there doing just that than you might expect!
The good news is that when the changes currently proposed come through you will be able to get paid for doing so. Still on a PPL and, as I understand it still on a class 2, unless anyone who knows better can correct me on that one.
No-one seems to know quite when to expect the changes to be put in force, however, so I guess you shouldn't hold your breath...