Can't think DOC's aremuch above £200/hr plus variables. Crew/Insurance/Hangarage/Finance on top though. That's all up to you to budget!
Crew: £30k/yr (Freelance would be cheaper).
Insurance: Really haven't an idea - probably high if SEIFR work undertaken once JAR levels the playing fields.
Hangarage: Do u need one?
Finance: Depends on your requirements for borrowing.
You do know you can't operate them under SEIFR at present though?