So I was finally able to get pictures of a few of the Thunderbolts left in service in my region. Thief River Falls, MN has two Thunderbolts, two 2T22's, a presumably deactivated Sterling, and a handful of 2001-130s (At least that's what I've found so far.) This Thunderbolt is located on the north side of the city near a trailer park, and the other unit (which is identical) is on the south side of the city. Here it is on a rather frigid day earlier in the year. So far TRF's older units are holding up quite well.
Crookston, MN also has a Thunderbolt 1003, which I will photograph eventually.
Drayton N.D. has almost the exact same build of Thunderbolt as TRF's however they are slightly more faded then their TRF counterparts. This Thunderbolt is in the south side of town, while it's counterpart (which would've been photographed I didn't have to wade through mud to get a close shot.) Drayton also has a smashed up Darley Model 3 in the middle of town, but I don't know if it runs or not. The thunderbolts have both changed position recently, so I assume they're active. Of note is the fact that these units have an American Signal Control Box mounted as well.