Hi Laura,
Very informative, and well written. You "sold me", if I was going to buy a tent:-). I guess a ground cloth is less than 8oz, so still less than your EV2, and perhaps easier to pack. I did have to go back to the start of the review to figure out what the third thing in your last pictures was (bivy). A label on the picture would be a big help.
Thanks for posting.
John