These panels from a German supplier, Fred Müller, Südharzfunkcenter, bolt onto the side of the IC-7300 and protrude out far enough to protect the front controls. As The 7200’s days seem to be numbered, this would seem to be the ideal accessory to make your IC-7300 safe for portable operation!
I bought these through eBAY – here are two links (he does ship Internationally – for example US for €13,90 using DHL). Shipping within Germany is free at the moment (11th. March 2017).