91' Hallmark Cuchara Needs a New Top - Any Tips

When we rebuilt the pop top on our Shadow Cruiser we used the front corners that were unrotted to measure from.
That gave us the width and depth of the skirt and we used our judgement to make the overhang the same on the back.
The major problem we had was dealing with the preload on the torsion bars for the lift system.
Good Luck, Mike