Jobo is the way to go for color. But large format color E-6 and budget are not usually possible.
11x14 trays are inexpensive. I err on the side of slightly oversized trays for the developer so that there is adequate room for sloshing, e.g. a 12x16 inch tray for the 11x14 inch slosher. The other trays I don't fuss over. But keep in mind that different brands have different interior dimensions with some being a bit smallish.
The stop, fixer, hypo clear can all be re-used up to capacity.
Developer can be re-used as well. But I try to stick with one shot developers. Depending on the volume of developer in the tray, I might consider "one-shot" to be a run of 2-3 batches, or 12-18 sheets. If you want to used a replenished developer that would be easy enough.
If you make your own, make sure you grind down all the edges so it does not scratch film. That is one of the advantages of the Photographer's Formulary or Summitec slosher, both of which are finished very well.
