Decided against going down the 2nd hand road as the cradles all look a bit scabby.
As you cant get a new one apart from a galvanised guard at £90, I thought what not have a goo at fabrication.
The original cradle was in really bad nick across the bottom, however both ends were solid and seemed worth saving.
Decided to get some mild steel strips cut from my local supplier and construct a bracket type cradle using the old one as a template
Slipped a couple of sheets in between for strength