Certified GKH Gardening Expert
In your zone I would wait for spring planting. Here is growing info if you have not yet read it: https://www.gardeningknowhow.com/ornamental/cacti-succulents/sedum/sedums-plants.htm
As for being resistant to deer, yes, for the most part they are. However, that said, you should be aware that being deer proof is something altogether different. No plant is 100% deer proof as they will eat anything if hungry enough.