On a trip, you probably won't be doing a good chain cleaning... Alone--just throw some newspaper down, spray the entire bottom of the chain and rear sprocket -roll it forward and do the other half... Personally, I'd stay away from chain waxes in that situation and just go with a standard lube...
If you have someone to help... have them tilt the bike's rear tire in the air using the side stand as a support.. then you can spin the rear wheel...
And then when you get home do the chain clean and lube like you normally would with a wheel stand. Heck, some people only have a side stand, so they always make do with the side stand tilt method.
Of course, the real red neck method with dirt bikes that have no stands (like my old YZ250-I used to use a Borden milk crate found (ahemmm...) outside a convenience/grocery store loading area. Never work with a streetbike, but you get the idea, be inventive...