Bizzarro choice.
Just to clarify this thread a bit, the coal service caboose is from Traincat and reconfirmed with him this weekend. The FVM ribside is the most common version of this design. As for paint schemes, from memory the caboose is either orange with a black roof or orange sides and (maybe?) yellow ends. The lettering and numbering varies from the as built maroon Milwaukee Road letterboard and 01800 series numbers, to just a herald on the side with 01800, then 991800. There are also some oddball MOW schemes, a Soo Line bandit, and I think a Wisconsin Central scheme. A couple of shortlines used these as well including one from the Quad Cities (DRI&???) and Idaho.
Again, this is just from memory.
Best wishes, Dave