I think your choice of Hua-Hin as a place to live would be a far better choice , I have only been there a few times but found both the beach and the town to be very clean , the people seemed pleasant and I did not notice lots of noisy bars . I have heard it can be expensive , but that can be interpreted many ways according to circumstance and personal preferences , I did not find it so and I live off a small pension . A good guest house I stayed at if that is what you need on arrival is 'Limelight' , discounted meals for guests , sports oriented TV and a short walk to the beach and a good fish
Yes another fad of Thai , visa rules are Ín flux' AGAIN , need to look that up on Thai web sight or maybe some-one else on the forum is up to date . Colin .