Get the inspection form:
https://forms.in.gov/Download.aspx?id=4998
Call your local LEO and ask them to come out and inspect the trailer and complete the form.
Take form to BMV to get title and registration. Can't remember the costs, but should be well under $100 total for everything.
You will need to go to the BMV and get a packet of papers that will require an inspection of the trailer as well as forms to possibly assign an "MVIN" if the current VIN doesn't meet their requirements
Weld a few extra tie-downs and brackets here and there covering the old VIN. Paint.
Then contact local LEO as described above.
Tell them you need inspection and VIN for a home-made trailer.
I did this for an actual home-made trailer some 10 years ago.
Inspection is a piece of cake.
BMV will issue a new VIN that you will be required to permanently affix to the trailer.
I stamped my number on a copper plate and riveted it to the frame.
I think the entire process was less than $50.
Do you actually need a title? In some states if the gross weight of the trailer and its cargo are under a certain weight (around 4000-5000 lbs for the ones I know about) they are not required to have a title, so many don't. They can still be registered and plated, but no title is needed.
Update...
Thanks for all the replies.
To no ones surprise, I've been to the BMV twice about this issue and have gotten two different answers.
First is Apply for VIN, have LEO check, get court order, send to Indy, etc. (The long way)
The second way, which I got from a supervisor, was simply submit an official bill of sale and have LEO check VIN. (I'm really hoping it is this way)
Will update as soon as I find out more.
Never seems to bother these guys....
Need anybody say any more?
Well except that right about now a HOT redhead would sure perk up the thread!
Ask and you shall receive.
Update...
The long and hard route is the only way to please the Crown.
Luckily for me, the guy who I got it off of has another trailer he is willing to swap with me. Not as nice, but it will do.
Can we turn this into a PWC thread now?