Canopy crack :(

After an unfortunate confrontation between me, my canopy, and the
buffer, I now have a two inch crack at the back canopy hinge point. I
have stop drilled the crack and am contemplating my options. The
crack is near my right shoulder so it is out of the field of vision.
However, I dread looking at it for the next umpteen years. I am going
to try to repair it and if that does not work I am going to stick some
smart sticker over it to hide it.

My question is, how likely is it that someone of above average
craftsmanship abilities and a great set of tools could camouflage this
crack enough that the casual observer would not see it? Please
describe your techniques and the kind of cement you used. I am in the
US and some of the popular cements are not available on this
continent.

Sincerely,
XF