Lincoln thought about the difficulty of finding vehicles from the battlefields of the last century and immediately decided to give up.
These things were all in museums, treated as antiques for protection and exhibition, so it was impossible to casually take them out for him to play with.
However, on second thought, even if they generously let him play with them, he wouldn't dare...
Who would dare fly a century-old airplane?
Trying to die early or something?
But there are always more solutions than difficulties. Lincoln suddenly remembered the gun he had crafted by hand at home.
If he could craft an M1911 by hand, there's no reason he couldn't craft Mausers and Mosin-Nagants, right?!
Similarly, there's no reason he couldn't make old-fashioned tanks and biplanes from World War I!
Especially since blueprints for these things can be found directly online...
For Lincoln, it wasn't that difficult.