Upgrading beds and mattresses and linens? What would the return be on it? That's a big chunk-o-change. Yes it would be odd for a queen and full sized bed in the same room.
Are you wanting to reno all these rooms? Or just make them usable until you can get the lodge operating as well? I thought just make them nice clean and usable. (Again sorry I am am off track)
From my experience with hotels as a family of four we are often faced with a) a king bed with sofa sleeper or b) two doubles.
I would never change it. Me, I would keep it the same. Especially retro, two doubles would give more space in the room.
Why do you want two queens? Are you expecting two couples per room? Do you have any adjoining doors, would be cheaper to offer a discount on a family suite as such than replace everything. Now if it were the lodge or a B&B proper I would have a different answer. And yet again, I would not want two beds per room, unless double beds.
For linens - I would get what you really want, if you don't sew hire someone to do them all, it would be easy if you wanted the same size and pattern on all of them, nothing easier to make than curtains and bedspreads!.