Did you some how miss the Super Reef Octopus line?
The SRO-5000 Int Cone with the Bubble Blaster 5000 draws 2100lph @45 Watts. This skimmer currently listed ~650$.
I actually have this skimmer and I would put the Bubble Blaster against any skimmer pump performance/cost. I’ll through the Varios-6S in there too. They are using the same motor as a DC-5000 pump for which has run flawlessly on one of my systems. They are both equally quiet and vibration free.
However being only 100$ more I would strongly consider/recommended the Elite line. The Varios pumps are really starting to prove their value and durability. I have a Varios-6 & -8 powering my reef now and have considered getting a Varios-6S as the back up to my B.B.-5000 pump. I would love to see how it would perform on my skimmer body which if I calculated correctly has just a bit more volume.
Reef Octopus BB and Varios-2,4,6(S) pumps are very underrated for performance and value.
The Elite line of skimmers is an awesome value considering that for just about 100$ more you get and really great looking skimmer, built-in float switch, DC pump control and best of all APEX Ready out of the box!