Something else that needs to be noted if you haven’t started yet is that the percentage of alcohol on you oak will determine what flavors you pull out. Typically you don’t want the flavors that come out of the oak over 130 proof. I personally prefer aging at 120 and then at 100 proof with 50% of the time spent at each step. Dilute your Everclear first.
By the way this is a process similar to what many micro distillers do while they are waiting on their aged spirits to finish. They but neutral grain spirits and then age/flavor them prior to selling them.