Knock yourselves out... ;)
Ok, this is a joke to me, but since people want to go through it:
1. Standard Array
2. Any WotC developed material (No 3PP, no Critical Role crap, etc.), no UA, it must be in a published work.
3. No multiclassing
4. 4 common magic items, 3 uncommon, 2 rare, 1 very...