Picked up a brand new cambelt kit last night for the Z18XE. £30 inc postage and contains belt, rollers etc. Only thing I need now is another waterpump. Did mine a few months ago and have only covered about 1k since so I won't need it for a bit, but at the price I got it for, it was worth buying.
He did have another kit the same but for some reason it was £3 dearer mine was a buy it now price of £26.05 with £3.95 postage, other kit is £29.99 starting bid with same postage IIRC.
Might be of some interest to another member looking for a cheap kit.