can't help you directly, but its probably best to have your sail maker measure the boat, or ask him which measurements he needs and how to measure them if you want to do it yourself.
Trusting some figures off the 'net may get you in the ball park, but this aint baseball...
I found a replacement jib for my trac 14 in A MARINE CONSIGNMENT STORE. $15. The guy said it came from a cape cod mercury. It is a bit bigger and has more belly for better low end but I have a furler so it's not a problem in high wind , I just furl it a bit.