Any pump that needs around 1-1/2" less total height will work.
The electric pump wasn't discussed I would presume because none of us in the discussion have experience with it (as of yet).
I have no objection to discussing it but have no intention of going in that direction.
I'm not sure if increasing the flow to that extreme is adviseable without inadvertantly overstressing the Pantera's cooling design is the right direction and might be complicating things expotentially unnecessarily?
But "pump away" as you like.