I only have good things to say about Farsports, i've ordered a lot of wheels over the years from them, especially given your budget allows it.
Given you run somewhat narrow tyres, you may want to have a look at Elite wheels (or maybe better, custom build them with Yuanan), they have super light 28mm wide rims. Yuanan posted on the forum a few days ago, you can speak w them on whatsapp (i'm discussing w them myself atm). People seem to be happy with them. Havent tried them yet.
But honestly, if you email farsports, given your budget, they can make you a killer wheelset with carbon spokes (stiffer for climbing, lighter, and within budget).
I did the marmotte a few years ago under 8h. Brutal
Dont find yourself doing that climb in the middle of the day in the middle of summer. it's not fun.