I don't think it is easy to find her exact specs online. harryconway maybe you could give some details about your search that turned up her sizes? I tried every thing I could think of for search terms and couldn't find the drum sizes. She does play Ludwig, I always guessed they were Classic Maple for the very untechnical reason that her Ludwig logo is the same as what they use on the Classic Maple line. Other than that I have no basis for this assumption. She used to play Zildjian Dip sticks but now she endorses Vater XD (she must be taping them because they are half red). The cymbals she uses are Paiste, 14'' Signature Medium high hat, 19" Signature Power Crash and 22" 2002 Ride. She uses a Jinglemute sometimes. I've never seen anything about her hardware.
The White Stripes do prefer to record on vintage equipment but I don't know if that includes Meg's drums. I think I might have read or saw an interview where Meg said she has some vintage drums but that Ludwig made her drums especially for her. The studio that they recorded Elephant does have mostly vintage equipment, Toerag, but it is in England, not Australia.
And the kits from the Hardest Button to Button video were donated to music schools because Jack and Meg didn't want people selling them for outrageous amounts of money.