RE: hay bale blinds
It shouldn't be a problem. Put the bale where you need it, and let the deer acclimate to it for a while (we do this in late summer to use in Nov.)
They work great in areas with tall weeds/cattails. Think of an elevated ground blind. Tip a bale on edge (flat side down/up), stick 4 metal fence posts in the top of the bale to stretch camouflage burlap around, and sit in the middle on a 5 gallon bucket.
We put a bale in a natural funnel location, and we've shot at least a dozen deer at close range (< 50 yds) over the years doing this.
Good HAY bale will last a couple of years; longer if you cover it. Baled corn husks don't work worth a crap.
-nosualc