yes,forget the minibus,far too dangerous,you have to ask around,you will get a good car and a good driver,safety is more important,you should get a taxi to huahin 3000bht,maybe 3500,,still cheap compared to anywhere!
We realise you can save a few baht with Sombat in his Nissan from round the corner as recommended by "bob in the bar", however this service is verified, hassle free and reliable ... and vouched for by this forum.