That's a real odd type pto clutch, it's backwards from most clutches with the pulley on the inside, Next to the engine... (see picture below)...
I sent you a link for a good used one in my reply to your PM...
Thought I would post a picture of what it 'should' look like, incase anyone Might have one laying around... also so you will have something to see how it should mount, if you get it. :smile:KennyV