I’ve also got AERD (aka Samter’s triad). I don’t know which of your ideas will prove durably beneficial, but I can offer two small contributions:
1) Instead of crushing up budesonide tablets, perhaps just get Uceris rectal. It would be less work and less messy.
2) I got the nasal polyps under complete control with a combination of daily saline sinus rinses (Neilmed) followed by a nasal steroid spray called QNasl, which has a strong enough spray to reach as far back as it needs to.
Good luck!