Inner CV joint for Astra Mk2, WHERE?

[Sid]

I've got myself some GTE driveshafts.
where can I get the Mk2 Astra INNER CV joints from, to go onto the shafts for a valver conversion??

I have been quoted around ?35 each for reconditioned ones.
(they are ?90 -ish from Vaux brand new)


Help please.

Sid