Hard to say since as a keyword domain it does not have any exact data to help the value. Even spelled correctly cool traveling has no exact data. Travelling has about 60500 exact global searches a month on google. So, that might help the value of your domain.
I like .com's but a miss spell of a keyword that has no exact matches is not worth much I believe. I would sell for anything in the $xxx (is great).
And it is a hard sell as a brand able domain since its a miss spell. There are a lot of .com's available now with exact keyword data that a end user can pick up at reg price. It is a common miss spell so you should get some value out of your domain.
ADD- Looks like travelling is a BE spelling. So it might be a better domain then I thought but travelling compaired to traveling does not get the hits nor the CPC.
