Well, the good new is I was able to get all of the under dash panels off, replace the brake switch and get it all back together (with no screw left over) and everything is working correctly, except the cruise control. At least I know it's not the brake light switch.
Re: Battery, I installed an inexpensive after market TPM System, as there wasn't even a TPMS light showing on dash at start up. The unit plugs in to the cigarette lighter shows voltage 14.2 tor so while driving without much variance. Battery is less than 6 months old.
Thanks for all the help, but we will probably just live without Cruise Control unless something else pops up. We don't expect to take it on long trips anyway, it's my wife run around town car.