Hello Guest, welcome to the initial stages of our new platform!
You can find some additional information about where we are in the process of migrating the board and setting up our new software here
Thank you for being a part of our community!
Not one mention of a hole saw in there. Sounds like most of the pain is in the wallet.https://www.volvoclub.org.uk/faq/VolvoAW70M46Conversion/AW71M46Conversion.htm
Essentially what you need to do, give or take.