Hi Herb
Thanks for input, I have found a number of complete second-hand units in AR condition and some new original ones.
I will check with Dan to see what he has left, then make a call on if I go to AR and rebuild or go new. Good thing is I will still put the nose leg back in and then install the dampener at at later stage before we do the major re-assembly.
Not sure about difference in castings for those that physically look the same but have different numbers, don't know enough about them.
As always thanks for the assistance.
Dave