Hi Marcus.
I already have all of these tonal vamps, but I was intrigued and unsure, in some instances, of the chord types, since you don't differentiate dom7 (7) from major 7 (which could be written ^7 , even M7, without going to the trouble of pasting ∆).
I understand the minor part (lower-case letter), but I would recommend - for *public* clarity (you can do on your machine as you think best) - to use more conventional signage.

Ex: IM7-VI7-ii7-V7 will be correctly interpreted, with no doubt, as (example) C∆-A7-Dm7-G7

Whereas I7-VI7-ii7-V7 gives me no clue as to whether the first degree is regular chord type or "dominantized", and same goes for VI, at that point...
However strange, I could legitimately think C∆-A∆-Dm7-G7...

Just suggesting, in order to have consistent forum submissions and song sharing.
Cheers.