Banana Pi setup

Last couple of days trying to find nice Ubuntu14.04 image for mail in a box setup on Banana Pi board. No success.

Last problem:
FAILED: apt-get -y -o Dpkg::Options::=–force-confdef -o Dpkg::Options::=–force-confnew install dialog python3 python3-pip

Reading package lists…
Building dependency tree…
Reading state information…
Package dialog is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package ‘dialog’ has no installation candidate
E: Unable to locate package python3-pip

I think this is problem with repositories of this current image I am using on my Banana Pi.

Anyone, do you have or know where to get proper Ubuntu 14.04 image for armv7?

PS. tried Lubuntu for Banana. Didn’t work out either.