Zoo_Boy???? you lost me there mate.
i dont think it really matters how influential ugly and ugly irwin are in the wildlife world, when zoos are dealing with (if they have to deal with it at all) a critically endangered species like this rhino what should matter is husbandary, research, resources. money isnt everything. australia zoo might have the climate, but they dont have any rhinos, no rhino staff, no facilities, no scientific facilities (like taronga) and no links regionally.
if ex-situ propogation is considered a solution with this species, and lets face it everythings on the table but nothings happening fast, Australia zoo is the last place any rhino should go.
to begin with, there are dozens of US zoos with not only the experience but the budget and facilities to keep this species properly. and as sumatran rhinos are not part of the regional collection plan, theres no compelling reason to base a program here over and above any US zoo.
but if the sumatran rhinos had to come to oz, then id say Perth, Taronga or Melbourne would be the best zoos for them, simply because each institution has had success with the other rhino species.