replaced rocker cover gasket again, good thing I had a spare!
I found 1 of the studs was loose and thus leaking oil, probably from the last time it was replaced
Used a fresh bit of the fuel hoses on the fuel filter, the end bits that had been clamped in place were a bit worn, so cut it short and jubilee clipped them back on.
bodged the "correct" bolt I got from VW with a 13mm nut & some thread lock
I'll be calling them Monday to find out WTF happened to it being the "correct" bolt
oh and adjusted the alternator belt.
That little lot seems to have solved the WIF light flickering when booting it!