Hi Jim; I dont think the B40 hackers are available with a 6:1 gearbox. They come with a 4.4:1. As far as the heat issue you should only be running the motor in short bursts; 30 to 45 seconds followed by hopefully several minutes of gliding with the motor off. Using the Motowizard feature is nice but it doesnt take things like what ratio gearbox is available in the configuration you need. Youre on the right track. I thought you were looking for a little more "mild" performance
Heck the combo you picked has a +1:1 thrust ratio! A torque roll with a 122" glider would sure impress everyone
Take another look at the Hacker setups available and juggle around your prop size/cell count. The B40's are good for 40 amps so keep the current under that. Also look at the readily available prop sizes and make sure you pick a size that is available.