Sometimes they need 'meat in the seat' where the type requires a co pilot. Not necessary to have a type rating as long as you have received some familiarisation on the type. That usually consists of sitting in the cockpit long enough to find the radio master switch, which is all you will be allowed to operate. Also, yes, you will need FAA CPL or a validation allowing you to fly FAA rego aircraft for hire or reward outside the USA. Reason they don't allow you to fly for hire or reward inside the USA is to appease the immigration people and pilot unions. A PPL of any description won't cut it, due to all sorts of legal implications, even if you are only likely to get expenses on the first few trips. Don't even think about doing solo ferry time until you have seen a bit of it, as done by the cowboys and pros (both survive this industry, but few forever).
Try Southern Cross Aviation in Camarillo, California, if you are serious. Peter Dickens or Peter Frasier.