Originally Posted by Road Fan

I was just trying to provide some illustrations.

if you want to see what some of the options are with a 45/42, fine, I can show you some. I can't guarantee to only tell about what you can make with your hardware on hand, because I don't know what you have or don't have, or if you're willing to hunt on Ebay for the good, cheap solutions. But first you have to identify a small group of possible solutions. For that you need to kinda become your own designer.

PM me your email address and I can email you my spreadsheet for designing half-steps.