It might work to get someone at a dealership to do it.
I'm currently faced with a similar situation on a military truck. Luckily, I have a friend who is a retired cop, and is also a military vehicle buff. He says he can do the VIN verification for me. I hope it works.
'94 Sportster 1200
Junkyard Dog Franken-Trail 90
'72 XL250 (Project)
'74 Jialonda XL70/125