I finally managed to finish this conversion. It was started 4 months ago, but I was suffering from a little burn out, so it got shelved. The Testudo is the up-armored Rhino transport for the Soul Reapers crazed Reaver assault marines.
With the upcoming challenge games, I decided that the poxying of the Testudo would be bad form.
I am quite pleased with how it turned out. Between the extensive front armored plates and the over-sized dozer blade it definitely looks the part.
I'll be busting out the airbrush this weekend to give it a lick of paint.