Thanks to great advice from multiple experienced members last night I have decided to book a flight to KL and apply for a SETV tomorrow.
I've reviewed the many requirements and one of them as you know is a printout of POOT out of Thailand before the visa will expire.
I know a throwaway ticket is one option. However in 90 days I'm hoping to apply for another setv and if denied fly back to get the visa on arrival/exemption.
Keeping in mind both cost of travel and likelihood of success with the setv, what would be my best option destination wise?
Sorry for the long post and thank you all so much for your advice.
TLDR : Answer Summary
The user is planning to apply for a Single Entry Tourist Visa (SETV) in Kuala Lumpur after exiting Thailand. They are considering the requirement of a printed proof of exit from Thailand before the visa expiration and weighing their options regarding cost-effective travel and visa success probabilities.