Engine cowl side doors

good advice Ron. And a nice man to just talk to also...

Standard message give Vernon a call... the man is a walking parts manual...

Hi All;
Does anyone know the differences (if there are any) between the engine cowl side doors of the 415, the Forney, the Alon and the M10 ?
I am wanting to repair or replace mine (an 1966 Alon). 
Searching the Univair site I see they have doors for the M10, the Forney and the 415. All different part numbers and different prices. The only difference I can find is for Dzuz or camlock fasteners.
I would be happy find some used doors that are in slightly better condition than mine but don't want to buy the wrong ones.
Thanks Guys.
Martin