It's totally doable, but I wonder how difficult it might be to get going? LPG motor vehicles are common here in Australia. The main issue is infrastructure, but

It's totally doable, but I wonder how difficult it might be to get going? LPG motor vehicles are common here in Australia. The main issue is infrastructure, but even then vehicles can be dual-fuel. That minimises the risk of vehicles being stranded without fuel, even if LPG availability is limited. For fleet vehicles, a company could maintain it's own LPG supply. I wonder how cost-effective it would be in that case? Maintaining your own chunk of fueling infrastructure doesn't sound cheap to me.