With a kitten to Laos and Thailand

Hello, everyone!
My GF and I now live in Danang where we have found 4 abandoned kittens. We took care of them. One died, two found a good owner. The last one is still with us. Now we need to go to Thailand and we want to do it overland through Laos. So - two borders.
I know it`s silly but we became so attached to our kitten that don`t want to give it to someone.

Ok, there is a question.
Maybe someone has experience in transit a pet through Vietnam-Laos and Laos-Thailand borders? If so, was it difficult to prepare all documents for your pet? What to do with a vaccination (the kitten is just 1.5 months now so we can`t do it to it).
Please share your experience if you have it.

I suggest that you do a little online research as there are requirements from Lao and Thai government.
www.pettravel.com/immigration/thailand.cfmwww.pettravel.com/immigration/laos.cfmwww.jclao.com/travel-pet-laos/