Update on this, we've pulled the trigger on some demo gear. Got a Fanatic Flow foil with 900 and 1250 foils. This is pretty similar to my setup (1000 and 1500 wings) so happy with this.
Now just out for board recommendation. The shop where I bought the demo gear recommended the Naish Galaxy. A bit pricey though at $3200 (they only have them new). I like the idea of this board though for someone who's looking for an initial one board solution. Shame it doesn't come with a track mount though.