I love those old Brit Iron bikes, but I just don't think I could adjust to the shifter/brake switch.
Like you I'd be afraid I'd try to brake and hit the shifter instead. So I'm looking for either a new Bonnie or possibly a post-75 one at the moment.
I actually did that on a buddy's little Honda gozipper when I had to help him get it home one time. Damn near ran a stop sign.
Sounds like you been riding long enough to realize the slightest mistake can get you killed really dead on one of those things.
It's an easy switch. I went from a string of Honda with left foot shift to a Sportster with right foot shift, and then Harley went to left foot shift. So I've switched both ways. It's a piece of cake.