Arrapago Salvage Lockout ?

[Shirai]

Ahem, on another note... would a server merge help to add more server equipment for the zone load or are they spoken for?

It won't, those loading times have to do with the fact that bandwith is capped at Dialup speed, upping that however would likely bring other risks along.

without requiring massive retooling of any of the actual zones.

Actually the easiest retooling they can do is change the Cerberus' and Orthrus' mechanics in Bhaflau.
Bhaflau II itself is extremely easy to speed run with an almost similar Alex yield to Arrapago, the big blockers here however are the bosses with their damage resistance mechanic which make it that only 3 jobs (from the top of my head) can comfortably kill these.
And 2 of those jobs need very specific conditions.