Happy to help, Rich. As I've mentioned before, I don't have either the knowledge or ability to even attempt what you've done, much as I'd like to be able to. So I'll just have to be content with occasionally offering, hopefully useful, snippets of information.
One thing to note with those badges - that second photo I used was of an original one, just to show the pins. The Mdina Italia version, (first photo), is a repop and is listed as "self adhesive", so bear that in mind, if that's important to you. Personally, I'd be happy with self adhesive, as the genuine Ducati plastic logos I used on my repainted tank panels were also self adhesive and they haven't moved in over four years.
For removing the old badges, if you haven't got them already, some cheap plastic car trim removal tools are handy, like these...
https://www.amazon.co.uk/KingSaid-Re.../dp/B07MJQFLDL