Mmm, Island 4x4 only list front props complete, £60 for ****part and £330 for OEM + vat. Time to get under and see if you need one. Many manufacturer's props are not designed to allow you to change just the joint these days.
I wouldn't get the sh!tpart one unless I was flogging it. Learnt the hard way: if it seals, moves, fastens or involves electrics then stay away from Sh!tpart.