I've asked TwistedMexican (who discovered a lot of the base game cheats) if he can find anything. He will let me know if they exist, and I'll share them here and on the Cheats page if something is found. Overall cheating in general should help you get them if nothing exists, since you can keep the store open very long and keep serving customers with need decay disabled. It does take some time, but queueing up lots of retail interactions then closing sales will net you 60+ per sale/restock.