The 7'7" + 5" for awning is a bit misleading on the part of TM. The overall width may be correct, but removing the awning only gives a little over 1", maybe 2" before you need to deal with the lights that stick out on the sides. I've replaced the 3 big ones with flatter LEDs, and made my awning removable, so that I can fit into my single car garage. It does fit, with some machinations (winch + tracks on floor of garage). I have the swing hitch -- necessary for me -- and I have to put mine in hitch-first, because of the configuration at the back of the garage -- I don't have the full depth for the whole width of the space.
But, it does fit
If you need any additional measurements, I can try to help.