I know we are talking minutia here, but save for a few early Supafuzz's at the beginning of the Sola Sound run, ALL later Supafuzzs are technically MK II Tonebenders. The circuit topology is exact, even down to most component values for nearly the entire Sola Sound run. When Sola Sound ceased production of the units and Marshall took it on, they did swap the 5 uf nominal input and emitter caps for 10 uf like you mentioned.
I believe the transition in production happened with the change in enclosure. Sola Sound used the Olivetti enclosures with the sharper bevels. Marshall production coincided with the rounder edge enclosures like the one Beck is pictured with.
Never realized the .01uF cap was missing in the later Supa Fuzzes!