Where to get/fix front prop shaft for Series I

[spudboy]

If I grab and wiggle up and down the mid-point of the front prop shaft on my 86" SWB it has way too much play in it. I can hear it clicking and see the movement. I don't think it's the UJs, it's spline wear.

Should I:
- get this refurbished - if is this possible
- buy a new/reconditioned one from a specialist prop shaft supplier
- try and find a replacement 2nd hand one (eBay/TRS/etc)

Suppliers to try? Prices?

Thanks
David