I know most printers let you scale stuff, so i wasn't worried about the As Designed size. Like 1/24 scale enlarged to around 200% should be in the ballpark.
I forget the exact terms, i think it was stuff like: Outhouse, Barrel, Ladder, Construction...
Pole barn / warehouse under construction.
https://www.thingiverse.com/thing:2266796
With some magnets you could probably assemble by crane.
Caged lights
https://www.thingiverse.com/thing:1965977
Road work ahead
https://www.thingiverse.com/thing:2896186
Hit & miss engine, might be a little early, but you run 1950s equip
https://www.thingiverse.com/thing:256813
There are too many pallets on there to pick just one.
Engine gives lots of hits if you need stuff to strap to a pallet, or stands, or hoists.
Turbine engine
https://www.thingiverse.com/make:353656
If you have a flatbed trailer, you need to do one of these. I can send shipping cradle pics.
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How about a Rivet fan
https://www.thingiverse.com/thing:1888682
Yeah i'm an A&P mechanic, have my FCC GROL, I work Avionics at an MRO. Mostly 737s. Hit me on pm if ya want to talk about it, instead of out on open board.