I was eyeballing an upgrade myself just for the increased energy efficiency, but I will be happy to get the kit with a buck converter selected for compatibility - Finding one that doesn't produce noise in the receiver would be trial and error for me otherwise!
The sBitx is shaping up to be a great portable radio after this upgrade, sounds like rx current should be competitive with the Yaesu FT817 but with all the advantages of a pi-powered SDR and built in digital modes!