I am indeed a leftie, and with that r/h guitar I sometimes play all I did was eves the strings, didn't even change the nut, and it plays so well that I don't need to do anything else to it. Just lucky with it. It's a cheap old thing too, think it's a Ramon, but it plays and sounds pretty much as well as the much more expensive one that's in this video
You actually are south paw , right? I see you play a right hand guitar in one of your videos. How much work had to be done to make that work? Is it truly necessary to fix the bracing inside ? Does it suffice to change the bridge?