Jim
Not the Avanti as such - it 's upgrading in general to a much more expensive piece of kit and how careful you should be - even with expert advice
IIRC Dick Karl did a number of articles - I think you can get some of them here
https://www.flyingmag.com/authors/dick-karl/20/
Start on page 2 with his November 2017 article and work forward....
For what its worth I've only seen the Avanti in S Italy - it looks great and clearly has a fairly spectacular performance level but it is not common and repairs and spares might be tough - especially a few years down the line
Good luck!