@musiclover1 - The details for how the upgrade is done and the bill of materials required are in the article. They cap details are listed here (vcap odams).
https://www.hificollective.co.uk/components/vcap_odam.html
I contacted Driftwood Music in St. Charles, MO and their tech performed the upgrade for me. Rockstar results ensued,,,
If you call Driftwood, ask for Pete.