If we use the set of 5 date lines from #343561 (Poland) based on the Kopicki subtypes, there is no question about where to move any of the members from #31088, but we lose some detail (legend variants).
If we use the set of date lines from #31088, we have a problem of how to move the members from the Kop. 3226 date line in #343561 into the different legend variants. But this only affects a handful of users' coins, who would be moved to the subtype with highest frequency, so I think this is the best approach.
So we wil start with #31088 and modify the date lines to look like this, then move over users from #343561:
Kopicki 3222 - Gothic letters both sides, no circle around rider
Kopicki 3223 - Gothic letters both sides, circle around rider; ALEXANDRI
Kopicki 3223 - Gothic letters both sides, circle around rider; ALEXANDR
Kopicki 3224 - Gothic letters rider side only
Kopicki 3225 - Gothic letters eagle side only
Kopicki 3226 - Roman letters both sides; ALEXAND/MAGNI DVC LITVANI
Kopicki 3226 - Roman letters both sides; ALEXAND/MAGNI DVC LITVANIE
Kopicki 3226 - Roman letters both sides; ALEXANDR/MAGNI DVC LITVANIE
Kopicki 3226 - Roman letters both sides; ALEXANDRI/MAGNI DVC LITVANIE
Kopicki 3226 - Roman letters both sides; ALEXANDRI/MAGNI DVCI LITVANIE
Kopicki 3226 - Roman letters both sides; ALEXNDRI/MAGNI DVC LITVANIE
And, finally, the obverse and reverse will be switched to be in better conformance with the guidelines (the issuer name is on the eagle side).
I will let this sit for a few days in case there are comments/suggestions.