who 's the idiot ? isn't it the guy who is traveling in Pataya ! and doesn't know where he could change bahts against dollars . it's getting really patheric
advice is walk in the streets , check out every "money change " booth . they are every where . if you're not able to do that by yourself . you have a problem
your son has strange ideas . why import ?they have all kinds of ice cream vans in Thailand . or you can build it there . they can do anything for you in Thailand . they're specialised in refrigeration .