Sharon,
Just a bit of a reply that may help. First, the 1.3 is one of my 2 favorite Titanium pots and I am sure you will be happy if that is your selection. The other being the Evernew .9L. Joshua (in another post) is absolutly right about the Kitchen just being a convenient packaging method. It is nothing more and nothing less. I am amazed and very flattered that some call it nifty. It just works for me on the trail. There are some other ingenious methods that hikers have come up with to handle the Calder cone packability that are posted on the FAQs at TrailDesigns.com.
The only thing the Kitchen does is combine the AGG Pot Cozy, a 4 cup screw-lid container w/ cozy and a specifically sized silnylon bag to hold it all together. All done to enhance the Caldera Cone. A large part of the fun of all this for me is finding or making accessory and alternative components that work and make sense on the trail.
So far, I have made Kitchens for the AGG 3 Cup Pot, the Evernew .9L, the BPL 500 ml. These 3 allow the 4 cup Zip Container lid to screw on. You don't need a cozy for the 4 cup container but if you carry the container to protect your cone you are missing a great piece of gear if you don't carry a cozy too. You can easily make your own. The 4cup zip w/ cozy was the big surprise gear find for me because it's great for freezer bag style cooking and holds my usual morning 2.5 cups of coffee/cocoa mix. :)
I have also "Kitchened-up" the Evernew/Vargo 1.3L, the MSR .85L and the BPL 550ml/Brasslite 600ml. the lid of the zip container will NOT screw on with the cone in place for these cones but the lid perfectly fits over the large end of the cone to protect that edge. I then place the cone/container/lid assembly upside down in the 1.3L pot and all in a silnylon bag to hold it securely in the pack. The size of the bag is important but you can also make one yourself in short order. There are also several configurations that make sense to me for the BPL550 depending on how you intend to cook on the trail. There just has not been enough time to get pictures up on the web site but I will eventually have them detailed there.
One unexpected bit of info about the Evernew 1.3 (uncoated) Ultralight with the handles – it's .2 oz lighter WITH the handles than the Vargo coated withOUT the handles. The Vargo does have a nice pour-strainer feature and I think the extra 2/10 oz is worth it if you can get around not having handles and using a glove or camptowel. Both pots are made by Evernew.
Happy trails,
George