We will provide the Purchase Slip from the owner and the Certificate of Title Deleting in Vietnam so you can get this bike registered easily, just take these papers to the Authority Office and get new title. Check here for more information: http://www.scooterhelp.com/restorations/vbb.registration.html
For US customer:
There are some additional fees when you pick up the bike: DDS, AMS, handling, registration...Total is about 150$ depending on your place. You do not have to pay tax or duty fee for scooter that was manufactured at least 25 years ago.
For UK customer:
You also have to pay 17.5% V.A.T and 8% Import Tax ( around £90 ) when you receive the scooter, you will then need to either take a photo or a rubbing of the engine and chassis number and send it to the Vintage Vespa Club, for £20 they will write you a letter of authentication, dating the bike, then you will need a MOT for the bike and lastly you need to fill in a V5 form at the DVLA that costs £38, so now bring her home!
For Australia customer:
Please check here: http://www.customs.gov.au/site/page.cfm?u=4781 for the approved importing paper before buying a bike. Its easy and simple!