If you go to someone like that with something so vague, you'll get gaffed off. With the best will in the world, why would someone say yes to an unsolicited e-mail from a foreign country inviting them to a race (at their cost) that has no provenance, no sponsors, no pre-arranged press, no location, no date and no entrants?
I REALLY don't want to put you off such a worthwhile venture, but you need to get lots of other ducks in a row before you even tell people you have an event.