[Libguestfs] libguestfs and exporting to OVA/OVF

Hi I've been looking for a standalone tool to create OVA/OVF VM files based on a disk image and found none. So I was thinking to write my own. Would you be interested in having such a tool in the libguestfs umbrella ? My aim is too have a free toolchain to build VirtualBox images for Debian (for Vagrant to be more exact, see https://wiki.debian.org/Teams/Cloud/VagrantBaseBoxes) Interface for such a tool would be something like disk2ova --memory 2G --controller sata --network E1000 myDiskImage.{raw,qcow2} based on the command line switches, a XML ovf would be created and packed with the disk image in a OVA file. There is some python code around which does that, for example the ganeti export code and imagefactory https://github.com/redhat-imaging/imagefactory/blob/master/imagefactory_p... but nothing available as a standalone tool. I am afraid I can only contribute Perl code. Emmanuel