Not sure what you mean by hot site, are they giving you /24 address, how many routers are going to be at your site? Also why BGP do you need to exchange routing info with the internet? In other words will you be hosting or offering a path to some web servers? If not BGP may be over doing it. I have some configs that may help you just need to your scenerio better.
"I hear and I forget. I see and I remember. I do and I understand."
- Confucius (551 BC - 479)