The one on the 'cafe' build on here was done very simply from what I recall. Unbolt the stand mount plate, turn it around, bolt it back on = stand on right.
Doing it that way is however foolishly dangerous............
If you do that, the side stand then folds up FORWARDS.
As standard, on the left, if the stand extends (fully or partially) when riding it will just bounce along the road, make a noise and possibly some sparks but be pushed back up into it's retracted position. If you have it folding forwards however, it will become a very effective rider ejection lever if it decides to extend (big bump, return spring failure etc.), especially in a corner.
Really, it's not that hard - just make a new one. This very thing is on my 'to-do' list along with the paralever conversion, I shall make thread when I get my arse in gear.