You could also check out Cherry Beach, Lydian Sound (in Richmond Hill), Technicolor (formerly Toybox, formerly MantaDSP, formerly D.A.V.E., formerly Sounds Interchange), MetalWorks Studios, maybe Number 9 Audio Group, Reaction Studios, Chemical Sound...
I'm pretty sure all of the above have 2" 24 track machines, but I'm not sure how up-to-date they all are with A/D conversion. And prices will probably vary pretty drastically. That list includes everything from corporate post facilities to indy music rooms.
Also, if you can find a guy named Lurch... not sure where he is these days, but he used to have a 2" 24 trk and a radar for a/d. That may be an option for you, too. He used to have a room called Broadcast Lanes, but I think he moved.
Hope this helps.