Anyone know where I can get a set of replacement end caps? Preferable alloy ones?

Ive googled it but no joy 🙁

they do come with the rebuild kits or give 2pure a call.

They are included in the rebuild kit.

I've got a used pair ( very ) you can have if you post me an envelope. My emails in my profile.

Cheers Tax, are they alloy ones?

The plastic ones are with the rebuild kit arent they? I took the main body off the shaft last night and re-greased the shaft and the bearings in them feel fine. Dont really want to be re-building them when there is no need?

Yes their silver alloy ones.
If you want them, send me an email and I'll give you my address.