OK guys, got the message. We changed plans. Girl is gonna do some girls' stuff for a week or two, while I drive through Laos on a decent Honda Baja. I'm a bit nervous as a result of all the raunchy offroad stories on this board (usually I drive K100RT in the Dutch asphalt-jungle) but I'll manage and hope to come back with a report that might be useful for other first-timers.
First experiences at Green Disc in Vientiane are not so good, I'm sorry to say. I specifically asked for a bike in good condition because of a two weeks' trip and they come up with one with a lot of problems, worst of which were faulty chain-tension and a carburettor-problem that makes the engine shut of at every traffic light, but also a lot of lights not working. Were willing to fix everything by tomorrow morning, but I was a bit disappointed though. Booked one at PVO's already just in case.