Mk2 carrier tow hitch on a Mk1

[rob love]

So I managed to pick up a hitch assembly for my mk1 carrier. It is the Mk2 type, although it came off a mk1 carrier. I am happy with the way the pieces sandblasted and look after their coats of POR-15 and olive. But as I measure it all up, I am starting to see a forthcoming problem. Can anyone who has done this confirm if the plate on the back of the POW holder on the battery box has to go? I suspect the hitch will interfere or come close to interfering with it. What about the POW bracket itself? Does it clear the hitch?
Seems to me I recall that the left arm will require the shovel bracket to be bent or modified.