Glenn covered your cost question, tools and material. I would add a roll of
visquen plastic sheets and a lot of duct tape. Also a approprate resperator
and a few 'bubba suites'..

I don't know how much you are paying for this boat but I doubt it's your
'first born'. Looks like a good starter boat and if this is the only major
damage then you will have a good learning experience with a minimum
investment. If your survive the glass dust itch from this job then your
ready for any other lesser jobs you find.

You could do your own survey of the extent of this damage with a mallet or
handle of a large screw driver.. Just work your way around the damaged area,
listening to the sound as you progress outward. You don't have to be a
surveyor to do such preliminary survey. If the area is large then I would
double or triple Glenns material costs and strip/grind it back to a good
bond. The area of most concern would be up towards the stub since that is
more sturctural than the lower area which is just sheathing.

Good luck and I hope you survive the glass itch experience with a positive
attitude.

Steve
s/v Good Intentions