Taking a clue from the Oregon Mouse observation...
can I suggest the Tarptent Scarp 2 with crossing poles ?
That is an integral pitch shelter (inner and fly up together) , larger than most doubles (can take 3x 50cm/ 20" mats) and with decent headroom too 111cm (45")
The extra poles give you a freestanding option and add to wind resistance, so you can use them or not according to the situation.
Tent and stakes is 1.7kg , the extra poles are 390g so under 2.2kg total adding the recommended pole guylines and two extra stakes
This video may give you a better idea of its size :

http://www.youtube.com/watch?v=PCGp9MVDo...mp;feature=plcp
(Henry Shire originally designed the Scarp 1 for a planned trip to Iceland, and that is how TT got into 4 season shelters...)
Franco
franco@tarptent.com