Ok so I rather foolhardily thought fitting the engine back into the frame would be an easy one man job and so gave it no real thought,this was possibly because;
A, I 'd all ready forgotten what a PITA it was to get out
B, The manual just said "refit from the left hand side"

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C, I 'd just been watching orange county choppers (or what ever it's called) on the box,where some fat bloke lifted up a HD engine and just dropped into the frame of their latest comical creation,10 seconds, job done.
My first attempt only succeeded in me bending one of the engine mounts,lacerating my fingers and the bike falling over.
Time for a Zen (and the art of motorcycle maintenance ) moment,i.e,a lie down in a darken room for a while.
Suitably refreshed in mind and soul, I attacked the job again, this time with renewed vigor.I had a good look, and planned my manoeuvres .Lifting the engine I twisted it into the frame at a tighter angle and after much tooing and throwing ,there was a sudden jerk and in dropped the engine.

the fruits of my labours