Santa Reefer Help

Lester Breuer

Current build is a Santa Fe Reefer kit numbered 32153.  A kit I believe produced by InterMountain for the Santa Fe Historical Society.
I need help with the Reefer, in series 31653 to 33155,  with the running board type , I believe wood and the brake step, I believe metal type.
And, trucks. 
I Thank You for your time and effort to respond.
Lester Breuer

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