Amazon has XOP Doubles for $120 for a four pack. They are heavier at 2.2lbs but don’t seem like a bad option for a second set or backup set.
XOP-XTREME OUTDOOR PRODUCTS Ultra Series Double Fixed Hunting Climbing Steps - Climbing Sticks for Hunting - Set of 4,XOP Green/Grey,XOP-ULDS https://a.co/d/aSAeJGm
XOP-XTREME OUTDOOR PRODUCTS Ultra Series Double Fixed Hunting Climbing Steps - Climbing Sticks for Hunting - Set of 4,XOP Green/Grey,XOP-ULDS https://a.co/d/aSAeJGm