That's a good idea. I had considered "taking up the slack" in that way but decided against it due to the added complexity of adjusting the height of the ground

I looked it up your Kit with Rainfly and Insulated Pad: 7 lb 10.5 oz / 3472 g (My as well say 8lbs) That is WAY to heavy for a pack. Ok for car camping. This is without sleeping bag. With Dan Durston's tent I run only weighs 2.2 pounds now toss a pad in it and that weighs 3.2 pounds with my quilt 4.2 pounds in total. The pad that comes with yours is R3 Which is horrible for winter. Do not attempt to sleep in cold temps with that. I run thermarest Pads R7 and they are good for -20. Pads run with a R rating. The higher the number the colder you can go. Search my channel for "Ultimate Sleeping Pad Showdown: Exploring Tent Pads for Your Best Night's Sleep!" I explain pads in compete detail. Yeah its good for car camping but not for a backpack. oh also with my tent its a 2 man and my German Shepard can also come in my tent and get out of the bugs. The pads they are offering with this setup is to much weight over 2lbs just for the pads. A NEMO Tensor Insulated pad weighs 1 pound with a R value of 5.5 Which is great for fall or spring. Summer is ok too. But when it gets cold I switch to the thermarest r7 pad which takes me to -20 When you lay on this pad you feel the heat coming off it right away.

This is the Haventents Safari which is their largest offering and weighs 12.5lbs for the tent and pad. The accessories add another couple pounds. Their smallest tent weighs half that