One more thought. Some online sellers offer 24 hr over night shipping. I never did this but I bet the cost is less than $65 in sales tax you will pay at any of those 3 Cabelas.
I was curious and looked. Optics Planet will ship that Mark4 Leupold, 2 day air, for free with current coupon promotion "2DAYAIR" If you are in town for 2-3 days, that should work. They sell the other brand too.
The Mark4 Leupold should be available at a lot of places. And there is a good reason for that.
I would still call Shooters Outpost, in NH where there is no tax!
I will bet my left peanut, that a ANY Leupold set at 20x will show more detail than ANY vortex at 24x. All day log.