I can't offer any assistance, but this brings back memories of a conversion we did back in the 80s. A customer had a Ford Fiarmont and wanted it to run on propane. He bought the kit, we installed it, and it went down from there. The engine ran really poor when cold, and when it was warm, it ran a little better. This was back in the day of fuel rationing and emission controls for everything but the radio.
Propane is a very clean fuel, but does not like cold climates. I can't see where you are from, but it is a warm climate, you should be fine.
Oh, and welcome to the forum!