I'm thinking of hitchhiking from Vientiane to the Bolaven Plateau in southern Laos. The first big city will be Savannakhet.
It's apparently a distance of 466 km (290 miles) so I have no idea whether I'd make it in a single day or not. I have a tent but apparently it's not legal to sleep "outside" in Laos and I'd prefer cheap local guesthouses intended for Lao travellers and I don't mind the language barrier.
Google Maps doesn't seem to show any large towns between the cities but I'm sure there must be villages. Is there a known place that's good to stop on the way or does anyone know if there are guesthouses in pretty much every other village along the way?
(Please don't answer "just take the bus". To me such answers are as dumb as "just stay at home and watch a documentary about Laos on TV".)