Bubbles says:
Do we need to keep track of spell casting components?
Yes I will try to make sure you follow all of the written rules regarding V/S/M component. I would like to also note following:
If a spell requires verbal component and you cast it while hiding - you will automatically fail your hiding as they will hear you casting unless you cast in a noisy place like next to waterfall or unless monster has no means to hear you.
P.S. If you are interested in acquiring material components for spells where you can't replace them with magical focus - ask NPCs. Spoiler: there will be little chance to get them on day 1, but NPCs in the settlement could make both components and equipment (armor, weapons) but it will take time proportional to the official cost, i.e. creating full plate will take too long, but they could make splint two days.