I asked a question, your response is not an answer. Your initial comment on not being able to rely on basic honesty in this country is the reason I asked a question. If you are Thai or not, assuming all Thais lack basic honesty is a questionable view to have. Be prepared for more people to ask questions. Racism is the same whether it comes from ferang or native Thai. It is wrong and deserves to be challenged or have a light shined on it so all can see and learn right from wrong.
I just took ownership of a lovely used motorcycle without experiencing a lack of basic honesty. All I experienced was friends eager to help a foreign person to start to build their new life in Thailand. Everyone sabai sabai, although very different to how vehicles change ownership invthe UK. Some misunderstandings and a need to have support from a Thai friend for translating and interpreting, however I see no dishonesty from the Thai people around me here. Maybe you have had one or more bad experiences, but remember that assuming makes an ass out of you and me, my friend. Have a nice day.
"worst weather," is a bit of a myth really. Some of the best weather days are during rainy season in my opinion. The heat can be oppressive all year round but more likely to be too much during dry season.