Tex if you are particular about an international exposure or experience then you have to start from somewhere. As your sponsor seems to be a hotel then most probably your food and accommodation part will be taken care of. Being a tennis coach you will have your work place in the hotel and no travel is involved. So if you do not have habits like smoking or drinking then perhaps you can accept the offer if you are desperate to come to the Gulf. If you are lucky to get acquainted with a high profile student then you can make it big. Just try to negotiate for a slightly higher start if possible.