Alright mate.
got a pair of rear spats waiting to go on ebay. let me know if ur interested. i can do them in colur for u if u want. "obviously ull need to cover the cost of the paint"
now to fitting them. they have spire clip type fixings that basically act as reinforcers for the rivet holes. (without these the rivets would just pull out and ur spats will fall off.
the best way in my experience is to offer them up where you want them and mark around them with something you wash off ie felt tip. when ur happy mark around the fixing point on the spat with a nice thick paint that will transfer to the bumper. place the spat back up while the paint is still wet then ull be able to see where to drill ur holes. remove bumper and rivet the spats in place et voila. ps nail varnish also works.

sometimes though not always the sideskirts are supported by a rail under the back doors or 1/4 if its a 3 dr which rivets on first. its best you get these too or your skirts may well split.

pm me or comment on my thread if interested