180 days out for your reservation.
Driving directions from offsite (without knowing your villa location). Go up World Drive (the main entrance from Highway 192) and follow the signs for Magic Kingdom. You will have to go through the Magic Kingdom tollbooths but you will not have to pay. Get as far over to the right as you can (buses are on the very far right so as close as you can get). Tell the attendant you having dinner at Wilderness Lodge. You will wave you through. As soon as you go past the booth, get into the right lane and follow the signs to Wilderness Lodge. I believe it's the first right. It's well marked but people sometimes don't understand that they have to go through the tollbooths.