I am not aware of any "For Hire" type service that operates remotely like that. Most RV service outlets will do that if you bring the vehicle in to them. The trick might be to get someone to take the unit to a place where it is and send you the inspection bill.
Some members on this site have been known to make an inspection for others on a voluntary basis. If "far away" for you is near San Diego, I might
be able to help...