Replying to All Mountain/Spring/Park ski

Kinda in the market for a new mid fat ski. Stumbled upon a used pair of Kartel 106s 176 that intrigued me, however being 5'10 I feel like I may find these too short but I could score a great deal. Ill be mostly in Utah, hoping to head up to Hood in May next year and maybe some time in Montana. Id use this ski for small pow dump in the morning and park in the afternoon, as well as spring riding and mobbing around now and then. I already have a dedicated Pow ski as well as a park ski, so looking to fill that inbetweener. Any other suggestions? Do I pull the trigger on the Kartels? What Size should I loot toward for a 5'10 140 type III skier? I feel like a 180 or 181 would be perfect

Other skis I've considered are the Kitten Factory Razr 105, Faction 3.0 (after further research it doesn't seem like this fit my criteria), K2 Marksman, Armada ARV 106.