I am investigating making an ultra-light motor home using the Transit Connect as the Chassis. Plans are to buy TC that has been wrecked in the rear and then remove everything behind the front doors down to the frame... and then build an ultra light aluminum RV shell somewhat similar to:
CampLite All Aluminum Travel Trailer Overview by LivinLite

This will entail widening to shell to approximately 80". So for stability, I want to convert the rear single wheels into dual wheels. Current stock wheels are P205-65R15 on basic 15-inch steel wheels. I would like to stay with 15" wheels and same tires... possibly using lighter wheels.

Does anyone know of a Ford 15-inch dually conversion kit that would work for the Ford Transit Connect?