Cutting it kinda close, the measurements of said tent may or may not be as accurate as your measurements taken. I personally found a 60x60x71 maybe this size would suit you better and allow you to vent out the top if you should decide to

1 inch will be enough if you vent out of the side

Stouts good it’ll be a tight fit putting the tent together but just slide the tent around the frame you build. Also don’t worry too much about scraping it against the walls or ceiling and you’re good to go. I did it with real low clearance same size tent