iMac Late 2011 i7 2.93GHz Sonoma Update 14.7.5 issues

Using OpenCore I've Success fully run my iMac all the way up to Sonoma 14.6.1. The OS had been pestering me for some time to upgrade to 14.7.5. I updated OpenCore to the latest version and upgraded away as I'd done before. However when I installed the post-install patches and reboot the system hangs about 30-40% into the boot process. I can fix this by rolling back using the guide but then I'm running without patches for wireless etc. If I re-patch -> same issue.

Is this a known issue with this model of Mac and this version of the OS and hence I've now made somewhat of a boo-boo or is there a way out of this mess?

Author: @Objective-Outcome284