Turkmenistan is open. Try getting to Japan unless you have a legitimte Japanese company sposored business trip or family. The only option now a guided tour "resembling a visit to North Korea" what has attracted 252 people since June 10!
90 day report has nothing to do with your visa and it is free. I have an O-A for some years. Never did a 90 day report because I never stayed over 90 days in Thailand!
Shipping a car internationally(did several times on Matson lines)nothing can be stored in the vehicle. Maybe if you do a full container/ own container. If you ever see it again in Thailand you will pay 2 to 3 times more than just buying a car. Then you have to register it. A ridiculous idea.