Button could/would be tucked up out of site behind new metal plate.
The problem is the angle it would have to sit at!
IF i use the existing latch I would have to turn it at least 60/70 degrees, so that makes the connecting rods difficult to work. If indeed they will work at all.

Need to look at a Mk2 and see how that works.
Alternatively I can go back to my first idea of using a Passat boot latch but that means I will have to run the C/L for that via the alarm box using the feed to the air pump.