So does anyone have any response for the OP?
I've searched for LORs online, but they're mostly examples for business, employment, grad school, etc., and are often very generic ("I've known xyz for 2 years, he has been a great student, blah blah"). It ends up seeming clear that they are not "real" but are some BS templates dreamt up by an advice site.
I've already written my letter, but I'm trying to find something somewhere that might let me optimize it in case I have formatting wrong, or if there's something that I should have discussed but didn't...