My local AL Guide has suggested to limit the treasure for these two characters to the following:
At lvl 20, for a high magic campaign, you get 20,000 GP, 2 Uncommon Magic Items, 2 Rare Magic Items, and 2 Very Rare Magic Items, as well as starting equipment.
They said that they think those options seem a little more balanced than AL, for treasure.
Other than that, would you be amenable to a revised Character build options?
20th Level, PHB+1 for everything except race, any non-flying race from hardcover sources, no flight options, gear as written at the begining of this post, and the duel format being first strike, half health, and full health format?