Eric...
I have only entered Cambo via Hat Lek...and often..3-4x/year, so here's an simple step-by-step list of what I do...with a bike that's in my name. You will do the same _except_ you will additionally need the letter from the owner granting permission to use the bike.
Re: 'letter' - hopefully someone on the board can specify exactly what the letter must contain..eg. bike make/model & license #, frame and engine #'s, contact info for owner, etc. ...and if it must be certified?.
At Ban Hat Lek, Immigration bldg is on the right (ocean) side; customs is in the bldg on the other side of the road.
1. go to the south end of the Immigration bldg...to the only window that faces Cambo, on the (south?) side of the bldg. Give them your pport and bike's green book...ANd your letter from the owner. They will create the Temp export/import docs and give you a copy.
2.Take the docs, pport & green book and walk to 'Departing Thailand' window at the other side of the the bldg. More paperwork to be signed for the bike and you'll get your pport stamped as exiting Thailand and give you the docs.
3. Take all the paperwork, pport and green book across the street to the Customs bldg. Bike & your info entered into computer and you'll be given a copy of the Temp Import/Export doc. Don't lose it...as it is needed and returned to Customs (where ever you re-enter Thailand) with the bike.
4. Get on the bike and go the 200-yards to Cambo Immigration (Cham Yeam) and get your visa for Cambo. There is nothing needed for the bike, you only need the visa.
FWIW...I don't know if you are on an 'OA' retirement visa, but if so you will need to have obtained an 're-entry visa' (1000-Bt) from you local Immigration office, before departing the country. If you fail to have an 're-entry visa' then your OA visa will be _cancelled_ upon return to Thailand and you'll allowed to re-enter with only tourist visa.
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