We ended up ordering a Schenker Zen 30 liter.
It happened to perfectly fit the space that we wanted to put it in - it's out of the engine
room, hidden from view, and only 5 feet from our circuit panel. I wanted to make a spectra work
but it required too much modularization to get it to fit vs. just installing this one. Also, Schenker was running a really good boat show
discount. I got the automatic unit for ~ $4500 [$4950 including shipping
and tax in Florida].