I've noticed on both yours and Richards decks, they have the curved sections underneath. My rear discharge doesn't have those and I don't think it ever had. I'll see if I can find my rebuild thread from some time back. May not be on here but RS.
They accept implements and attachments, like ploughs etc that you want to lift of the ground.
Photo below is of tool bar with plough attached inserted into slot hitch.
Better shot. This time with scarifire attached.
I see Eddies wife's blue Mountfield and trailer. Also his Wheel Horse with beer barrel and dummy in the trailer.
I like the black and white traction engine photo.
Is it going to be a worker, Richard? I've no seals in the bearings in mine. I give them a couple of shots of grease now and them. Mine does get a lot of use and abuse though. Some of the ground I mow is quite rough.