I live in Wongamat, about 1km north of the dolphin fountain (Naklua Soi 16, Soi 18). Here you can rent motorcycles like everywhere else but it's not as busy. You could rent a motorcycle here and practice driving around the roads near by. Thai people are too polite to laugh at you in front of you, and anybody else is a tourist so screw them :)
"approved for a Thai 60 multi entry" I am not exactly sure what that means.
However, a Multiple Entry Tourist Visa (cost +/- $200) allows you to stay up to 9 months but you will need to exit every 90 days. If you return (exit and return) on the last day the visa is valid you can stamp in for 90 days which means 6 months + 90 days.
Let me explain the 90 days. Each time you enter Thailand you will get a stamp in your passport. That stamp will include "Permitted to stay until...". Depending on your visa situation the stamp can be valid from 15 - 60 days. In your case it's 60 days. Near the end of the 60 days you will have to decide to, extend or exit. You can extend 30 days or you can exit and return (same day) and get another stamp for 60 more days.
To extend you will go to the local immigration office, pay 1900 baht and get a 30 day extension. In order to do this, you must have a valid TM30 on file. If you are staying at a reputable hotel they will do the TM30 for you. If you are staying with a friend, AirBnB, or other smaller hotel, they will likely not do the TM30, or at a minimum you will need to verify it's been done. If it has not been done you will need to post another question about that.
I am still married, I provide her a few dollars every month, she saves me a little in tax money.
The marriage visa is a pain, requires a lot of paperwork, and may require a visit from immigration. The wife prefers live in her village so it was a big ask of her to stay here a month until the immigration officer comes to check. Tourist visas are just easier.
Wise has pretty good rates. I have made a few transfers from banks and/or western union. Those rate suck and the transfer's total cost is significantly more than wise.
Then there is the whole thing of 'long term stay in Thailand' (aka international transfer)
I have successfully applied for and received eVisas while in Thailand. However, it won't be "activated" unless you leave and come back. Also, the rules say you're not technically supposed to do that, so you are running a risk of losing the visa application fee.
It's been a while but in the past onward travel requirements can be met with bus tickets. The cheapest is Hat Yai to Penang. I have used bus tickets in the past but not since before Covid. In theory it will still work.