Someone on SELOC offered me one for £15 (second hand) - he wasnt sure of part number or if it was the right one so wasnt really keen on pursuing it
I then found a good company called Moss-Europe Ltd
http://www.moss-europe.com/
Same part - £17.83 brand new.
ordered new bolts and washers - hopefully they wont shear this time!
Ordered them online on Sunday night - arrived Tuesday 2pm
good service!
Head getting put back together this weekend hopefully!