Soldato
Which bars would you recommend? and why would the previous owner swapped the front and back brake around?
These are ok:
http://www.chainreactioncycles.com/Models.aspx?ModelID=58611
I run 720mm bars myself, and even though they are only a few inches shorter than my older bars, I much prefer the wider bars.
As for the brakes, most likely personal preference. Swap 'em back if you like. I prefer front brake on the right as I'm used to that setup on motorbikes.