no, the Samsung galaxy axiom is a CDMA only phone, T-Mobile requires a GSM phone
yes, the Galaxy S3 Mini is a GSM phone, and will work, but will likely be limited to Edge (2g) speeds.
ALL broilers are on top, so your statement on the broiler on the bottom is incorrect
if you have gas burners on top, which i assume, you can just turn those on and roast them by throwing them around until they are charred.