I scored a back seat from a Clubwagon at a salvage yard for next to nothing. I think less than $40 The seat mounting holes were cut with a blow torch at Comfort Conversions with 1/8 inch thick reinforcment plates. I'm swapping the seat that was installed but removed by previous owner for the Clubwagon seat that turns into a fullside bed. When it is laid flat the bed takes up all the space between the back hinge of the curb door to the back doors. It just fits between the vans finished walls. You could save money by getting a used seat that already lays flat when needed and have it recovered.