Right so after the positive response from you all regarding fitting my autohomes rigid pop top. If anyone out there has one on their van could you possibly send me pictures and measurements of the hole in the roof, and the upper bunk.
Also the sides of the roof were cut slightly to remove it if possible I would like measurements from the gutter to the crease line in the fibre glass sides of the base.
Thanks in advance.
Here's some pictures of the roof

Everything can be fixed with the right attitude........
and a BIG hammer