I think the trouble with this is that the vehicle stat block format varies with the rule set. The Saltmarsh ship stat block is different from the BG:DiA infernal machine stat block which is different from the Spelljammer stat block.
Regardless, a vehicle creator would be nice, but probably not really necessary for the time being. Wizards has plenty of other things planned, after all.
It would be nice to have unified rules and a builder, but sadly homebrew functionality has not been a priority of the devs for quite some time.
prove me right
Especially with the new Spelljammer content.
I think I heard somewhere that that is one of the things they are/were working on, but that was before wizards took over so it might have changed.
I think the trouble with this is that the vehicle stat block format varies with the rule set. The Saltmarsh ship stat block is different from the BG:DiA infernal machine stat block which is different from the Spelljammer stat block.
It would be nice to have unified rules and a builder, but sadly homebrew functionality has not been a priority of the devs for quite some time.