Phil: Of course I have all the photos of the roof re-skin project I did several years ago, but regarding the weight, it may depend on how crazy the crew that built your boat went when they applied the glue that adheres the inner and out skin. My roof is the identical construction but of course....nearly four ft. longer. Weight was 269 lbs. before I started the job, based on the total of the weights on each corner using a bathroom scale. I weighed everything that came off and went back on during the job. Leaving a 5" perimeter when cutting the top skin, the remaining center skin came apart in pieces that included some glue and delaminated areas, but weighed just under 70 lbs.. I ground all the glue out and after vacuuming and bagging the half that didn't blow away, the bag weighed 55 lbs.. I estimate the total glue weight at twice that, but less than 35% was in contact with both inner and outer skins, meaning that 60 lbs. or more was waste. I also have two other interior cover panels on the inside that don't come on the conventional roof.
With the additional length of my roof, they may have added more glue just to keep the inner and outer skin from rattling against each other. If they didn't go even more crazy with the glue on your roof, it should be about two thirds the weight of mine, or approx. 180 lbs. max, and less if the glue is less.
Subsequent replacement of the glue with a 7 lb. expanding foam and a new skin of equal thickness added strength and saved 45 lb. over the original setup. Crown is 1/2 inch.