mercedes vito 639 chassis

hi all,going to convert my dual seat vito to single seat and wondered if anybody has done this.i,ve heard horror stories that the srs light stays on and merc say that theres a paperwork exercise before this can be done.

i know i can leave the centre seatbelt there and bolt it out of the way so the system recognises it,but is there any other way,or any kits available.