Google around for care sheets, your scientific name is off, I think, all the Rainbows I found were of different scientific names. They only major thing I got from all the care sheets is humidity. LOTS AND LOTS of humidity. They should be kept at around 75-80% at all times and up to 90% during shed times.
For ME, anyway, that would indicate hard snake to take care of.. as I'm in a very dry climate. They seem to be very calm/docile snakes, and will eat small rats as adults. They enjoy burrowing, so use a loose substrate like Aspen so they can burrow under it. One care sheet said adults could be kept in large rubbermaid's... as I'm sure they assist in humidity.
Prepare the royal mister! lol