I do exactly the same as you. That's why i end up playing 10 minutes and editing 10 hours every time!!!

What i saw in your videos and is IMPRESSING is that (although for most people is useless detail) the game fonts are well optimized for letter characters to be de-capitalized. I once started a DE-CAPITALIZATION project on PES 2018, but the game boards , nameplates, pop-ups etc, were optimized only for Capital letters, I.E. Busquets in your videos is shown properly, on 2018 The "q" letter was not displayed correctly. The tail under the line-horizon in the "q" was not displayed and it was shown like an "o" with a line going somewhere down.
So a de-capitalization is viable on 2017!!!

Also if i find time, cause i do not have time to even boot up my console these days, i want to make a "diet" project for all body types of all players, i want to edit them to have -2 or -3 to all body values, so they look thiner as in 2018.
Out of curiousity, why you enter all this mess and just not play your 2017 as it was @PRO_TOO ?? I mean since you also playing 2020 afaik. It needs much extra time to tune up all details.