If you had to start all over again...
If you lost everything you have for this hobby, all your feeders, foods, baths, containers and accessories, all of it, and you wanted to start over with everything you need to feed all the types of birds you want to feed, what would your shopping list be?
No easing into it. No starting slow and simple. You've already been doing this for a while, you've figured out what works and what doesn't. One shopping trip to get everything you want.