Thanks guys.
I've seen a couple of guides on changing the cam, but would appreciate any more info before I start. Anyone have any saved links they could easily share with me please? or what's the best term to search with? When I search "Camshaft" I get pages of results and most are to do with diagnosing the prob.
Also, anyone in Melbourne willing to share / hire the camshaft locking kit?
P.S. Van is late 2004 and has 193k on the clock. This is the first major trouble I've had with it, so I don't think I've done too bad at all. I even shipped it here to Oz when I emigrated 10 years ago and those four rolls of loft insulation wedged in each corner of the container were the best 100 quid investment I ever made! (I dread to think how bashed up she would've been without them after I saw the tilt the forkies used moving the container around the bumpy yard)
Love the ol' girl too much to let this camshaft rain on my parade.