Hi I have a F 510 Honda which I use on a regular basis, I have a Howard 300/350 Plough that is adapted for my Honda using the pin on the rear hitch. I dont intend to use it, where are you, I am in Sheffield.
Two weeks ago there was a Honda rear rotovator attachment £125 which is a fair price on Ebay.
PM if you are interested in the plough (I may be going to Newark)