if i were to give a list it would be the flourish (not excel since you're already adding carbon) for micros, nitrogen, potassium, and phosphorous. for now at least you might not need iron with your substrate being partially fluorite. if you overfeed you may not need phosphorous. if you stock high (most people do) you might not need the nitrogen.
it really depends on your water source, stocking, feeding habits, plants, etc. if you are going to go with estimative index dosing you may want to have all of them handy. if you test often you should know what you have in your tank. if you do you can easily find acceptable and/or suggested levels for everything. if you do that you'll have a good idea what you need to do in no time.
imo, testing as much as you can and making sure your micros are available will give you your best chance for success and best understanding of your specific water chemistry.