I really like this system. A few things:
The main point of standardized prices is for the craft skill.
Also, is there anything beyond masterwork for additional points?
And the whip would probably be:
exotic 1-handed 9 points
reach+adjacent for a one handed -6 points
can be used to trip -1 point
+4 trip and disarm -2 points
non-leathal -0 points