duplicate projects: kerberos and krb5

Hi. I wanted to set up daily builds of the upstream sources for the ubuntu krb5 package. For a variety of reasons it seemed valuable to do that as a project rather than on a junk branch. I registered krb5 as a project and then when I went to link the ubuntu package realized someone else had registered kerberos about a year ago.
Unfortunately the branch being used is non-ideal: the directly imported the upstream svn.
Upstream is moving to git, and the debian packaging has always been based on git.
Handling merges using bzr of the same sources partially through svn import and partially through git import is going to be a huge mess.

I'd like to end up in a state where
1) there is one project
2) I can use a branch imported from upstream git

I'm an upstream developer for the upstream project, but I am not the upstream development lead and am not working for MIT; I'd be happy to maintain the project in launchpad, although upstream is not planning on using launchpad for anything other than tracking krb5 in ubuntu.

Sorry for creating a mess, what's the best step from here?