Those pics brought back some memories of what my '89 van looked like back in '01 when I got it.<br /><br />How bad is your roof gutter rust? My high top was originally installed with drywall screws which started the cancer I have been fighting ever since.<br /><br />It would be best to install a high top from another 71 to 94 Dodge. I am not sure of the slight differences between dimensions of ford and chevy or of later year dodges. The fiberglass is flexible to a degree, but best to not have to stretch or compress it<br /><br />The entire rear of my vans roof gutters were rotted. Without adequate metal working tools or a place to work on it, I just cut out the cancer and used aluminum angle and aluminum C channel riveted to it and rebuilt the structure so that the back of the fiberglass rood has something to be able to be attached to. This pushed the fiberglass roof forward a half inch, which required me cutting the perimeter of the base, almost 3/4 inches where it meets the front windshield support.<br /><br />The conversion company did a real half a$$ job cutting out the old roof, and left a section in the back and front for support, but it was worthless. I wound up making thick plywood shelves front and rear which also support the vans walls, and I have no doubt it would hold up better in a rollover than when the van left the conversion factory.<br /><br />Adding a raised roof is not so much just a driveway and one person with a friend type of job. My roof, gutted of all the foo foo conversion van crap, weighs about 200 lbs. I did remove it completely once for rust treatment and was able to get it back in place with just the help of my 70 year old father, but I feel guilty for asking that of him.<br /><br />If you goto pull a roof from a junkyard, getting the fiberglass off the old van can prove a challenge depending on the seal the original conversion van company used. Bring a small bottle jack or 2 and some 2x4's to spread the load, and some putty knives to break the seal between fiberglass and metal, after you remove all the fasteners which will likely be phillips head sheetmetal screws.<br /><br /><br />