Join the Pearson email list here on Sailnet and ask your questions there. Several P-303 owners are on the list and will be a big help. FWIW -- I've personally known two 303 owners and they have loved their boats.
The best website for anything Pearson is
www.pearsoninfo.net.
As always, I will list this disclaimer: I have owned 2 Pearsons (currently own a 33-2) and think the boats are great values. But that's just me. Other opinions may vary.
Good luck!