La Sportiva Spantik mountaineering boots. $300.
Size 44 (10.5) but fit 43 or 43.5 feet if you size-up. Ideal for Aconcagua, 6,000-7,000m Himalayan trekking peaks, or possibly Denali (with the overboots below). Moderate wear consistent with careful use on two trips. Spare laces included.

Forty Below mountaineering overboots. $100.
These zip-up neoprene covers add extra warmth to your boots and act like gaiters; ideal if you have cold feet, or if you're heading for Denali. Size large which perfectly fit the Spantiks but would fit similar boots +/- a size, or less bulky boots in a larger size (e.g. to add warmth to single boots). A few small crampon holes patched with seam sealer.
https://40below.com/product/forty-below-purple-haze-overboots-insulated-mountaineering-boot-cover/

NOTE THAT MY LOCATION IS SHOWN AS CANADA, BUT ITEMS WILL BE SHIPPED FROM THE US...