Enjoyed your vocal and arrangement, Don:
Sorry 'bout the back problem. Welcome to the club... and, regretfully,,. it's probably going to be part of the ageing process you and I are destined to endure. (The rest of these guys are young whipper-snappers.) LOL! Uh oh, forgot Gary!
I have no doubt that you could improve the sound of a 60 year old washboard and kazoo... 'cause with that vocal... the rest is just gravy.