Her 32 spoke Tiagra 9sp hub Alex rim rear wheel keeps breakin spokes and in the Washington DC area a spoke repair is real money.
I have a new Sun CR18 rim I could lace up for her and would use Alpine III spokes on the drive side and maybe 14/15 for the other, 3 cross.
If it were mine Idd go the Alpine route but use oval spokes in a radial pattern for the off side using a 36 hole rim and hub.
Don't know why the shop won't stand behind this wheel as the bike is still less than a year old. But she is a woman of substance.