Imho you need to replace just the swivel pins bearings And seals not expensive but it takes a few hours per side mainly cos of the tine to clean parts it's a filthy job! I have the near side hub apart at the moment and ordered a swivel kit from dingocroft for 45 GBP plus freight to nz ouch I...

Bought it unseen for $2500 which is around 1250 quid using the equivalent of eBay which is trademe.co.nz in new Zealand... Seller seemed honest enough over the phone etc...but... I'm ok with it in general but the engine has bad knock not mentioned by the seller which could be the vacuum pump...