Fitting a laser (westwood) l120 cutting deck?

Hi there
I have an old laser/westwood lawn mower. I bought this mower with the deck removed from the tractor as it was badly rusted. since then i have had it welded up and now i have come to fit the deck back onto the tractor. at the front of the deck there are two rods which have 3 holes in that bold onto two other rods that hang down from the tractor. At the rear of the tractor there are two rods that hang down with a bar between them that some how attaches to the deck. Does anyone know how this back attachment attaches to the deck?
Also on the back of the deck there are two curved rods which move up and down with the deck hight settings. this tractor has the handle attached to the deck.
Can anyone help please?
Thanks

Kingsley Jones