If the trailer is constructed from vehicle parts purchased from a wrecking yard the
presenter is to provide ORIGINAL invoices with name and address of the business, a
description of the parts or parts sold, and date of sale, including the wrecker number
and stock number or VIN from the parts vehicle.
If the trailer is constructed from vehicle parts purchased from a private individual, a title
for the vehicle the parts were taken from or a NOTARIZED bill of sale must be
presented. The NOTARIZED bills of sale must include the names, addresses of the
sellers and purchasers, a description of the vehicle, including the identification or serial
number, date of sale, part or parts sold, and purchase price.
http://www.wsp.wa.gov/traveler/docs/cvd/170_129.pdf
do you think It will fly?
I also might have a line on a used bent sxle, wich will work perfect for my air bag suspension idea