Sorry mate forgot about this, here you go.....
Even though it states Ed 21-2016 at the top of the page, scroll down and you will find where Ed 20-2005 starts...
https://ocsdata.ncd.noaa.gov/ntm/res...Since=20050722
Then cross reference here...
Maritime Safety Information
That's a helluva lot of corrections to apply, the chart is going to look pretty messy after applying that lot.
Personally I would get the latest edition that's already corrected to date then just apply the NTM's as they come up, will be a lot neater...