Also stretch out your tent and measure it. 6x8 finished dimensions are often 5”8” x 7’8” or so

Your post/thread has brought back memories for a few of us of our first season I'm sure. Certainly has for me. My first season on my own was 79/80. I was able to set up a camp on the lower part of an interior river and trap around there. My shelter was a 10x12 canvas tent. I was able to fell some large spruce and cut them for 3 rounds of logs and building a frame for the tent. The tent went over the frame and was secured to the logs. I had a 55 gal. drum that I cut the bottom 3rd at the rib and then the top section about 3 in. below the top rim. A door hole was cut. A door and handle made from the middle section and hinges screwed on. The stove was placed on the left as you entered the tent and at a height that the top was around 3 ft. off the dirt floor. My spruce pole bed frame was on the right, about 2 ft. off the floor. I'm going to say the stove door was 2 and 1/2 ft. from the bed. I spent the whole trapping season in that tent so I survived my share of 40 below cold spells in the tent.
Maybe you will have a cot, so your not laying on the floor? If you have to pack stuff in what size stove will you have? Good chance you won't see 40 below in Nov. but could see -20 I bet. With todays climate you could probably see rain in early Nov.
Lots of time to plan still.

Maybe you could get a bigger tent and use the 6x8 as your emergency tent. You could have it all set up and ready in case main tent went poof. Can you pull the tent(s) in on a sled? Might save your back some.