Problems with supplying APK to an external client for Android Marketplace Submission

Hey there,

I wish to supply a copy of an app we have been working on to our client as an unsigned release APK so that they can sign it themselves for the Marketplace release. We have a Pro Licence for Android yet our options for our Keystore Alias only give us Unsigned (debug), unless we make a new Keystore which requires company details, etc (which we are in position to do so as we are a third party vendor).

How can we provide our client with this sort of APK?