In general, you can use BLT as a reference because it has a similar clientele. If I want a
DVC resort near MG on monorail, BLT and VGF will both be acceptable. In fact, given a choice, I will pick VGF over BLT so if the dates you are looking for are full for BLT for the type of room, your chance at VGF would be slim too.
However, if you are a non member, you may rent it from VGF owner.. if you are lucky, you may find some initial buyers not ready to travel yet. So post your wish list on the forum, you never know.