I need a little more data on how far you stripped. Did you strip the gelcoat off only, which should have left small voids where the blisters were in the chopped strand mat? Or did you strip a lot of mat off so you no longer see where the blisters had infiltrated the mat?
The mat doesn't add a lot of structural strength, but does keep the oil canning at bay somewhat, and helps eliminate print through of the weave. Mac 25s where built to a price point and the hulls were not the thickest and already had some flex in them.
I'll watch for your answer and then give you some ideas. I've saved some hulls and I've scrapped some hulls. I'm also crazy enough to have $24000 in a $7000 boat and have never gotten a return on investment on any old boat I've repaired. But It's a hobby and I enjoy doing it.