This year, early Febraury was still in the value season. That meant that you could get a cabin in early February for $255 per night rack rate. If the
AAA discount is available, you might be able to get 15% off the rack rate. This would be without any specials. It also looks like in the past, Disney has offered package discounts for this time of year... I do not know how much they were for though. In my opinion, if you could get it down to around $200 per night, that would be a good deal.
After having stayed in the cabins several times, I think you would really like them. It is great having the extra space and escaping the crowds. Fort Wilderness is quiet and peaceful. The cabins are spacious and great for a family of 5-6. You will really appreciate the kitchen, deck, and outdoor space around your cabin. Let me know if you have any questions!