My boss and I are CPST's (she's an instructor) at our hospital and do this kind of stuff all the time. PM me and we can help get you in touch with someone in your area, or we can help work with you hospital to get an appropriate restraint for your child.
Child Passenger Safety - Instructor
DS1 - 8 DS2 - 7 DS3 - 3
Expecting a SurroBaby 12/12/13