Ah, I thought that might be the case. I assume waxoyl and normal waxing just slows it down haha! You guessed right, I'd go for either but I'd prefer a 2.0 as I'd like the extra grunt.
I'm no stranger to a bit of rust and simple engines, we've got an old Triumph GT6 as well, but that only comes out on sunny days for exactly that reason.
Glad your saying its worth the effort, exactly what I needed to hear!