I understand the sentimental value as I inherited my Dad's boat and kept it for ten years after his passing but was more work to rebuild than I had time effort and money at the time. My condolences on your loss.
After seeing the pictures I can see your "in it" too far to say forget it. I know Cape Codder boats are still in business. http://www.capecodderboats.com/
Not too many boats from your era can say that. Might be worth a call over just to see what they recommend and why, as I'm sure they have done numerous re-builds. I would replace what came out but I also try to think out of the box at times. Wish you luck.