The short answer is no.

The long answer is somewhere between probably not and maybe. You will have to convince the FISDO or DAR that you built the airplane from "parts".

I went through this same decision when rebuilding the Mangy Fox. I chose to just embrace the idea that I am not the manufacturer. There's a couple of reasons not to.

1 - I don't mind the idea of another person looking at my plane once a year to "check my work" so to speak.

2 - I only had a 5 hour phase one flight testing period (because I changed the prop!) rather than the 40 hours needed if I were to have become the manufacturer.

3 - I paid state sales tax when I bought the airplane. If I were to have "built from parts" I would have to calculate the cost of these parts, less taxed receipts, and pay sales tax again to register the plane.