If you do get it, I would love to see some more pictures, especially if you can fit it to something, and show it in action.
When i first saw it, i though of a mower with a similar slot to the victa 18, but at the front, then i had to ask my self why you would put a mower on the front of a mower!
A tiller certainly makes alot more sense.
Let us know how you go with the auction!