No pat answer but in general I would be at least cautious. A boat is a pretty complex structure with a whole lot of little pieces that all have to fit and work together. I would think it would be almost impossible to have every little detail work on the very first hull of a new design. BUT, it could be hull #1 of a slight revision or update on an existing design which could be a different story.
I have been talking to the owner of another Pearson
422 but an earlier hull, not even #1. The muffler
did not quite fit in the engine
space so someone (we assume it was Pearson) trimmed off one corner of the engine bed
to make it fit. After 25 years the bed
in that area sagged putting the engine out of alignment. Owner had to jack it up and reinforce the area.
One small example but I think it illustrates the point.
Any chance you can inspect a later boat in the series to compare?