DNS AXFR Between Linode Accounts?

I'm wondering if it's possible to do a DNS AXFR (or some other kind of transfer) between two different Linode accounts.

I have been hosting a number of services for a client, and we're making the jump to getting them a dedicated account of their own. As such, I'd like to transfer the DNS data out of my account into their account without having to re-type everything (it's a fairly lengthy zone).

It seems easy enough to transfer from other DNS services into Linode, but I can't find much information on going from Linode to Linode.

Any help would be appreciated!