As @Peter BENSCH said, using DALI-2 required certification by the DALI Alliance - which requires membership of the Alliance:
https://www.dali-alliance.org/membership/how-to-join.html
I guess, once you're a member you'll be able to find other members with experience ... ?
A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.
