I'm pretty sure IPS's Cloud hosting offers dumps of your database. As for doing your import, xenForo Ltd doesn't offer the service, but you can find several companies that do in the 3rd party services section.
Just to clarify; we can install XenForo for you on your server but Mike is right that we can't actually do the import for you (though it is pretty straight forward) as long as you can get hold of the data and files that are currently in the cloud. We would usually expect to be importing the data from the local server.
I can log in to my forum through ftp so could get the info from that I believe but i'll check with ips looking at the importer i think I could do it on my own but ill look further in to the importer just to make sure