What are the financial requirements and application process for a Digital Nomad Visa (DTV) in Thailand for freelancers and their families?

Hello everyone! I've recently visited Thailand and loved that country. I heard about the DTV and would like to see if anyone can help answering my questions before I plan on applying.

1. I work for a US firm as a freelancer. Now do I have to have 500k Baht in my local country's bank account or I can show Payoneer statement as I have about 700k Baht in there and its my regular system where I receive money every month.

2. I'd also like to understand how can I apply for my wife and 5 year old to take them along with me?

Do I have to submit separate application for them or is

there a way to combine there application with mine?

Also, do I have to show separate 500K Baht for my wife or

just mine would be enough?

Your expert comment will be highly appreciated,

TIA!