You can get re-entry permits make the multiple entry kinda pointless. Multiple entry does not require re-entry permit so they are a little more convenient. My last re-entry permit taken me 10 minutes. The multiple entry option isn't too much more convenient.

Also, your questions reference:

" I will print forms, get photocopies, complete it all at home tomorrow then go in person on (my 30 day expires )"

I think you meant a different month.

I found the Android app to be pointless except that it will keep you informed where you stand in the queue. Hence, you get your ticket then sit on the beach until your number is called (well before your number is called). The app offers some other features but nobody seem to know anything about them (setting appointments for example).

@Petteri *********

I usually plan 1 - 1.5 hours prior to take off for domestic.

How long will you be stay? If you plan to leave before your visa expires, process maybe unnecessary.

You found a good AirBNB if they are willing to do the immigration stuff for you. My experience has been most will not.

@Darren ******

- taxes, not visa.

@Charles *********

I don't recommend volunteer visa. It's kinda made people into pariahs.

An IO told me once the ed visas for older folks aren't a great option either. It maybe good for single use but for several years maybe not the best option.

But if I were in the situation - I would try either.

@Joe ****

Its about the same cost as a Elite visa factored over time. You can live in a cardboard box for next to nothing if you want to save money.

Also you can live in a cardboard box in Thailand and bring the same box with you wherever you travel avoiding the 'two househould' issue.

When in doubt I buy a bus ticket from Hat Yai to Penang - last time it cost me $15

I have had issues with VietJet. They are usually the cheapest but their systems is old and has problems. I tried to fly a friend VietJet and they need her to have a photo of my credit card. About 2 months later there was fraudulent activity on that credit card. Now I spend a few bucks more to avoid them.

Regarding nearness of flights I think it won't make much of a difference. I believe you will still go from international to domestic, also I think you will have to go through immigration in BKK.