I am a BPA pilot at one of the Scottish sites. Never knew the owner, had just over 200 hours: just phoned him and asked if he was needing anyone. Had to spend a few months showing my commitment before I was signed off, but it's worth it. 6 months later and I've got an extra 50 hours to my name that I didn't have before. Not bad considering the Scottish weather, and I can only make it a couple of days a month.
My advice...pick up the phone and try your luck. Granted we fly a C206, so insurance maybe isn't as strict.