a tape measure would have been nice to bring.
Easy scheme to get that short haired maid is to let the MC here the circumstances, as long as he says he will take her, the noble won't be able to do anything.
Though I have a premonition(forecast lol XD) that the "older brother" will see the maid with the MC outside somewhere and stir trouble for them, which in turn bring trouble for his house.
"Measure twice, cut once"