That's great. I've had something like that in mind for our older girl and I do teach her mechanical work -- and like yours, she's very, very feminine -- no gender identification problems at all. She was in the Young Marines for a couple years and they did an excellent job keeping the girls, girls.
She has no problem doing dude work or being a female. She’s a Sgt now and moved on to another field in the AF, but she did the F117 the 22 and the 35.
And she will be the first to tell you that women probably SHOULDNT be in the military. But many of the guys today are wimps. Thank God that America is big enough that we still have plenty of MEN joining and serving like MEN. But there are fewer all the time. Thanks to the feminization of boys in general. Not a popular thing to say. But facts bear it out.