You're most welcome! Here are some links to Mega/Microsquirt forums with great tech and tuning info:
https://www.diyautotune.com/support
http://www.megamanual.com/forums.htm
http://www.msextra.com/forums
For wideband O2-sensor, I recommend digital unit with on-board datalogging (no laptop required). I suggest no display gauge for safety. Capture all data while staying safe with your eyes on road. Then take logs back to cave for analysis. Logs also much more accurate than trying to eyeball gauge.