Original paint scheme on '74 Cheyenne

[Cheyenne75]

Hi everyone,
My newly aquired '74 Cheyenne had been repainted twice. Originally blue, then red, and currently is white. Today I had to pull the bed off to replace 1 of the fuel lines that developed a leak. Wheel the bed was off, I could see white shields with blue.

My questions are, can this year & model come equipt factory two-tone with or without side trim with the two-tone colors? I really like the original blue, and would like to eventually have it repainted the original colors. But would like to add the side trim if it originally came with it, or would it look fine two-tone without the side trim?
Thanks, Dave