I feel obliged to comment on the WarmLite. It was the coldest tent we ever owned!!! Condensation was very bad.
OTOH, we find the Nallo2 to be amongst the warmest of tents. I always carry a thermometer that has an outside probe, and on a frosty night (25F) it doesn't get below ~38F inside with two people. The key is that all the condensation goes through the inner layer, leaving you an shell of dry, still air. You can't/don't get this effect in a tarptent or non-breathable tent like the WarmLite.
Jacket-the Skaha hoody with front pockets is a keeper. Baffled down warmth for your head, torso and hands. Ask for an extra ounce of down to be added. Otherwise, a balaclava such as the ones sold by Down Works is a great investment.
Closed cell foam mats all the way, unless for comfort reasons you need more, in which case I can heartily recommend the Stephenson's down mat.
I also recommend you re-think your foot wear. Too many layers can impede circulation. better to wear less and let your down socks do their magic.
VBL-this can be a lifesaver, even if it is just breadbags for your feet.
And of course, sleeping bag. Sounds like you've got a good one. Quilts are dodgy unless you have someone to share the heat with (and who is not a blanket hog). Otherwise go with the full hooded/draft collar/footbox style. A critical factor is to make sure the bag is roomy enough that you don't restrict the loft when you're inside, even with all your layers on. A bag that can be used unzipped as a quilt is by far the most versatile choice you can make. Pretty much all WM bags can be used this way, and their temp ratings are closer to what I would consider reasonable for women.
Food-I have a bag of nuts by me when I go to bed, and when I get up in the night, I shove some in my gob. This keeps me churning out that extra bit more heat.
And finally, cayenne pepper. Use in emergencies only, rub it into your feet if they are so cold that you can't feel them. It takes a few minutes to work, but soon you will be having a real hotfoot attack. It weighs almost nothing, but it's for emergencies only because, a)it's hard to get it on your feet without getting it onto your hands, and if that happens, you will inevitably rub it into your eyes/mouth/nose etc...b) The pepper will also stick to your socks, so you may have to wash them to get rid of it. This is another area where breadbags can be helpful to keep it off your clothing and bag.