What Are the Requirements for Border Bounce from Thailand with O-A Visa?

Hi Guy’s, I’m after some visa advice please.

I am a 57 year old Brit who came to Thailand nearly two years ago on an O-A visa obtained in London and have a ‘Permitted to Stay’ stamp until the 20th April 2020.

With everything happening with corona, I was planning to go to bounce out and back into Thailand tomorrow at the Myanmar border before everything is shut down, as I want to convert my O-A to an O based on marriage by obtaining a visa exemption first and then getting an O visa from my local immigration in Lopburi then after 2 months apply for an ‘Extension of Stay’ based on marriage.

My question is, am I required to have the three proofs (20K cash, hotel booking and ticket to exit Thailand) to do the border bounce?

I have not done any land crossing before.

Thanking you in anticipation

Keith