Thanks to all who responded and yes, weighing the plane as a pre-buy is a VERY good idea.
Here's a few things that increased the weight of my bird:
C-85-12 Engine - 12 lbs
Metl-Prop - 26 lbs
6.00 x 6 Gear - 28 lbs
ELT - 3.7 lbs
Landing lights - 4 lbs
25a Generator - 14 lbs
O-200 Eng STC - 4 lbs
add in a nice paint job and hidden dirt and you have a plane that doesn't like
hot high air. The main issue is that it needs to be recertified as a 415D
