Hello,

Have you seen the GT rider maps? There is a guy who rides around Thailand and Laos on his motorbike and makes very good detailed maps from GPS traces. They are inteded for motorcyclists, so they include everything from major highways to dirt tracks. They are very good - the government of Laos has commissoned him to make maps.

I think this is his full-time job, so he probably wants to make money selling the maps, but you should contact him and see if he is willing to contribute material.

http://www.gt-rider.com/contact/about-gt-rider

He might be interested in contributed something.