Topgunner,
You really have to know what brand of F7's you are looking to convert. Kadee has a web site with the conversion information:
http://www.kadee.com/conv/holist.pdf
Not sure if MoPac used diaphragms between their F7's(usually used for freight service). MoPac did have EMD 'E' units and Alco "PA' units for passenger service. Also the brand of diaphragm will make a difference in the coupled length.
I would check with the MoPac Historical group about paint colors and passenger service engines:
Groups like the above have a wealth of information and the cost of joining is paid for many times over.
Jim
Modeling BNSF and Milwaukee Road in SW Wisconsin
Welcome to the forum! ..... .... Please continue to post here.
It's not real clear what you are asking.
I found this website googling "mo pac f7 images" ..... It has a variety of Mo Pac photos.
http://www.trainweb.org/screamingeagle/loco_streamliner.html
GARRY
HEARTLAND DIVISION, CB&Q RR
EVERYWHERE LOST; WE HUSTLE OUR CABOOSE FOR YOU
Mo Pac Colorado Eagle and all Mo Pac colors for F-7 A & B locos,plus the correct Kadee coupler between locos,for crrect spacing for diaphragms.