I to have deer that destroy anything that look half way edible. I don't know how much area you need to protect, but in the passed I have found a cheap low tech way of deer proofing an area. Deer are afraid of thing they can feel, but not see. So I used 5 pound fishing line, some 4-5ft tall half way sturdy trees from the wood next to my house, and a small 6-8in piece of 2in pvc pipe.
Tied the fishing line to the poles around the desired area, about 1 foot apart So 4-5 lines per side. Drive the pvc into the ground were you want the door, remove it with dirt in the middle knock the dirt out and drive it into the ground again, this is so you can remove on pole to get in and out easily.