Just got the new rear panel delivered today.........hmmmm pattern part....not sure which pattern? 
The rear tow eye doesn't fit though the slot.....? The exhaust cut out is for a single pipe.....? And its generally very poorly fabricated. Going to need a lot of fettling to make it look like a mk2 rear end........and LH front wing delivered instead of RH? Hey- ho WTF. 
Might it not just be easier to find a scrapper in good nick at the back in the same colour, and get the bit you want cut off? I wouldn't fancy messing around trying to fit a badly shaped part, especially if it's poor quality.
I think about half the pattern parts I've got so far have been a poor fit, and I've just ended up going to VW/a scrapyard for the same part anyway. The last one was a number plate light that didn't even look close to being able to fit under the tailgate plinth.