Okay, so I found the closest that I could find to an "official" patch for the hack on the old Rockman 2 IPS site.
Rockman 2 IPS database:
https://rockman2ips.tripod.com/index.html
Backup Wayback Machine capture I made:
https://web.archive.org/web/20250531184542/https://rockman2ips.tripod.com/index.html
The version of Rockman II DX there has the original patch for the hack with an additional unlock patch for Wily 3 as the hack that needs to be applied after the main patch. This is because, as far as I could tell, this hack was never finished although the modifications are extensive enough that it's fine as a game choice. It should be "ロックマンIIDX (DELUXE VER)" on the Rockman 2 IPS page I linked. However, this submission desyncs with those patches as the [a1] version of the hack used to make the TAS has a shorter jump out of the water for Wily 3.
I did find a TAS done with the "official" patches on Nicovideo since the info was listed on the Rockman 2 IPS database:
https://www.nicovideo.jp/watch/sm1508695
While this submission does beat known records, the hack version is an actual issue that needs to be fixed. Is it possible to resync the TAS with the "official" version of the hack?