I have a Transit Cargo arriving next month and in preparation I'm trying to figure out the best way to add a removable two person bench seat when we want to have additional passengers. My plan is to use L-tracks on the floor for the front of the van so we can have a modular system (i.e removable galley, etc). I would like to use something like the Unwin Seat Lockers but they say they're not compatible with transit seats (which I'd like to use as they're readily available). The Unwin system looks ideal because they can be installed Has anyone gone this route? If so, which seats did you use, did you need to find a base? If you went with Transit seats, how did you instal them?