No worries about that MFK link, it is out of date.
I met the Western USA Hikari rep in Vancouver a few weeks ago. We can get Hikari Massivore in large quantities, no problem.
I should be able to provide you the LFS information for any city in Canada and/or the mail order connection needed to get Hikari in large quantities at a discount.
Hikari also now has a jumbo sized aro stick suitable for use with jumbo aros. I would guess that would be a popular food for club members here?
For an actual national group buy, it might make most sense for this to be organized/coordinated by EEYY out of Toronto? I don't have the time to coordinate it myself, but I have the contacts.