Thanks for the info Turnip. I think I'll go for a swinging arm with a hoist type set up. Simpler and cheaper at least.
I hadn't thought there would be much hardship in plugging in the PTO to a mounted Hiab. I think could be over reaching with what I can tackle (pun intended). It sounds a bit complicated for now and as you say Shaun it needs the proper part. I'm not sure the Mog I bought has it. I still haven't got it delivered yet. The shed is coming along though.
Ta