The only problem with comverting it is that you will either need a cable to operate it or some kind of cross over linkage. Nether idea is good. Just get used to it mate. Also what about the gears? Are you going to alter that as well?
I currently have my trial Panther with LH brakes and an upright gear lever, a BMW road bike with RH brake and a normal LH gear lever, My Ural outfit with RH brake and a heel and toe RH gear lever and ( fingers crossed ) will have this summer a road going hand change Panther with RH brake which pivots from the front of the bike. So yes you do get used to it and only occasionally try to brake with the gear lever and vice versa