Vehicle builder / transfering?

Is there any way to transfer a vehicle built in a world to a format suitable for the .json in the vehicle directory? Or maybe a vehicle builder? I built a vehicle and I need to have it converted, but I have no idea how. The vehicles in the vehicles directory are confusing as hell!

http://smf.cataclysmdda.com/index.php?topic=12119.0

not sure if it still works

[quote=“nuker22110, post:2, topic:11872”]http://smf.cataclysmdda.com/index.php?topic=12119.0

not sure if it still works[/quote]

Thanks, but it only gives a meaningless .json, not a .json usable as a template for a mod.