I mentioned above, you have a van, you can deliver, its easy enough, collect order thats been picked, drive to persons home, drop at doorstep
i could drive to the 3 local towns in 15 mins from both Tesco, Asda and Sainsburys, so no need to chiller vans, one drop per trip, thats a round trip of 30 mins, maybe 20 plus slots per day, 10 other vans doing it, 200 plus deliveries added to the store per day