I'd put the blind up a good week or more prior to your hunt if possible... I leave my ground blinds up continuously on private land for 3-4 months at a time and there's some stiff wind to deal with here. Get rid of the cheesy stakes that came with your ground blind. Use something like this on the eyelets (that touch the ground) and put the pin through the eyelet and bury the stake with a claw hammer, you'll need a claw hammer to remove the stakes in the end:
http://www.campmor.com/heavy-galvanized-steel-hook-stakes-15-inch.shtml
Also use guy ropes on the exterior hub tie offs and stake them down good too, I use something like this for a stake:
http://www.cascadedesigns.com/msr/tents/tent-accessories/secure/groundhog-tent-stakes/product
The rope on the stake makes stake removal easier. You can use shorter stakes if in heavy soil (like clay), but use long stakes if in sandy soil. I just use long ones where ever I go, not much rock where I'm at.
IMO antelope rarely look up, so getting vertical (like 20 feet) is better than being on the ground. If the bluff is close enough to the fence (so antelope are within your archery range as they walk by), then use the bluff as a tree stand if possible.
I've seen antelope go out of their way to pass through an opening in a fence (IE. open gate, twisted wires, etc) versus crawling under the fence (that's assuming they aren't being pressured). If using a ground blind is a must, then try finding a spot where they like to pass through the fence and set up your blind near it. This can be as good as a water hole in some instances.
Regardless of which ever method you go with keep in mind that prevailing wind direction may be the determining factor in your blind placement.
