my wife's son came for 6 months hol visa,we had someone to sort the visa out,people say its easy but uk gov have clamped down to much now,one mistake and you loose your money,I could give you a website for someone to sort it if you want,she is thai but speaks good English and sorts uk visas out for people
My thai wife has been in England 12 years now and loves it,be prepared to spend a lot on visas and a lot of stress to go with it, need to learn English language for the tests,good luck
Talk with Ploy Regal Swan she sorts alot of these kind of problems out,she is english speaking and knows the uk visa system,6 month visa should be better not worth it for a couple of weeks,good luck
No easy way round it,she has to do the 5 or 10 year route,not cheap by the time you've got to citizenship you will of spent about 10 grand maybe more,and alot of headache,get in touch with Ploy Regal Swan she is thai and speaks good English,she sorts visas out for people