Nice try but needs clarifications.

1) From CatalinaOTAswufix.app> select
Software Update fix button, let it confirm
OK
2) Start the 008 install from the Apple SWU C/P (re-runnng the CatalinaOTAswufix.app may be necessary)
3) Select
OTAswfix button as the D/L starts, it will confirm
OK
5) Continue the 008 install to completion
6) when it reboots, hold option key and select the dosdude1 patcher USB
7) Install the recommened post-install patches.
8) When the 'Force Cache Rebuild' checkbox becomes available <Select> then wait 10 seconds, restart the Mac. Often, the initial restart after patching can take much longer then usual and is normal.
Note - Make certain the Library/Updates ƒ is empty before starting the update or it will fail!