I used a Pletscher Two-leg double kickstand on a 1100km tour last month. Beware a single leg stand can allow the bike to topple sideways since the kickstand mounting point is often lower than the loaded bike's centre of gravity.
The weight of a kickstand is negligible compared to a loaded touring cycle, or picking up a loaded touring cycle.
Be aware that the stand will have to mount to your bike in a place that is not going to interfere with other components (like disc brakes, derailleurs, drive chain or panniers)
No matter what - standing or leaning your bike is easier than picking up a loaded bike, or loading a bike that is laying on its side.