Even with no docksides to copy, I'm keeping my clone count at at least 3+, because of how prevalent bowmasters are in my local meta. I run clone effects instead of the drakes because of how effective it has been to use one to not only remove a bowmaster, but get my own at the same time (rather than stealing one which doesn't trigger giving you the army right away.) I did stick Mana Vault in at the moment just to use as a ritual effect since crypt is out. Being able to push a little bit earlier into that first spin or to gsz/ikoria/chord into seedborn muse has always been a huge uptick in win%. Like @cadekeeton7157 I'm actually considering Marvin too. Worst case he ends up being a mana dork, best case he's another Glen Elendra or Spellskite. Also, you forgot to link your list :)
Not gonna lie, when I clicked on this I didn't realize it was going to be a cEDH video, but actually enjoyed learning a bit about the format. I'd love to see more deck techs :)
I recently added "Enduring Vitality", "Marvin, Murderous Mimic", and Pila-Pala to my Kinnan list to create infinite colored mana. I am curious what you think of this!