Just to share a recent data point on Oklahoma City and sale/registration paperwork processing time. Yesterday, 1/12/23, they posted the sale and registration of an aircraft they received paperwork on from me on 5/26/22, 231 days ago - that's 7 months and 17 days. The FAA is shifting to an online process using a log-in procedure with two-factor authentication which I successfully negotiated after three attempts, creating a personal CARES account to use the next time. So now I have a FAA medical account, a FAA Safety/Wings account, a FAA Basic Med account, and a FAA CARES account. All different. You can't make this stuff up.....
CARES - Civil Aviation Registry Electronic Services
CARES - Civil Aviation Registry Electronic Services