In Indiana to have a trailer (home built) have a VIN we go thru the Dept of Motor Vechiels. That would be a good place to start. You will need one on the Slingshot when it's time to sell (a long time from now).Few Pictures of Areo Slingshot Guys..2 1/2 yrs and now can drive it..
Have to finish interior in fall when cooler..
Can not take heat and humidity any more at 71..Yikes..
I destroyed my VIN Label ..Any one know if I can get replacement ????