You don't need to be a vetran 50 year bike mechanic to flip a handlebar stem and possibly move some spacers around. I don't know why you went to quill stem conversion complications, bypassing just flipping what's there, that's some overthinking, my friend. Ocam's Razor. I'm not judging, at least you asked first before ending up on r/bicyclemechanics.

Nobodies perfect. Just last week I was trying to take my front wheel off to put in a friends van, for almost two minutes before I remembered the wheel has fork clips.