Thank you for keeping this alive. I'm not skilled enough with Excel to be of use other than play-testing...
You're very welcome! Luckily I'm an IT guy and the code/equations for Excel are pretty easy for me to follow.
Speaking of play-testers, I've created a Bug/Error reporting form to keep track of what needs to be fixed in FA. If you know of a bug I haven't tackled yet please look into reporting the bug. It'll help me save a lot of time backtracking through the form to find any errors and such. ForgedAnvil Bug/Error Tracking Form