Alight! Just when I was starting to lose hope that it might never arrive, I now have the antique toilet paper holder! It got dropped off today and was waiting for me at the door.
It's in great shape, and even though the original photo(s) of it looked pretty grubby, it actually looks like it's chrome plated/shiny under all the grime. I plan to give it a polish. I've already taken out a few small bends and kinks in the frame. Now the hard part will be to decide if the roll holder should be Maple, Mahogany, Oak, Ash, Walnut, Cherry, Hickory, etc.
I'll also have to source some brass end knobs. I think the ones I have are too small.