I would have Western Mountaineering make me a few custom sized sleeping bags, well after I tried on all of theirs and determined it was necessary. I would need a 20F one, a -25F one, a -40F one and maybe a 40F one. And, then a 0F for the wife.
I would get a downmat 9 for me and one for the mrs.
I would have McHale make me a pack for summer and one for winter, and one summer one for the wife. Maybe even a Kifaru UL for good measure.
I would have custom shoes made for summer and some mukluks for winter.
Titanium gigapower stove
Titanium 700ml pot
Titanium 32 oz bottle
titanium spork, light my fire brand
merino wool clothing all around. (I found 2 merino wool sweaters at the thrift store the other day, $5 each).
A couple tarptents for different situations.
A down jacket.
Some winter clothes and gloves from Empire Canvas
A blackbird hammock, and a bridge hammock.
Some cuben tarps.

Well, this could go on.........