DPC has stated or at least hinted at many different numbers with regards to the total episode count. Initially it was 10-20, then they seemed to indicate it may have as many as 4 seasons (16 episodes), then it became 3 seasons (12 episodes), and at one point, based on something they said on Discord, it sounded like it could end up being 10 episodes. So the best answer is; we don't really know.
Most speculate that 12 might be the number because with things moving fairly quickly, affinities now starting to be locked in place and relationships coming to a head, it's difficult to see how it can go on for 10 more episodes.
Well it does to me. The MC has been portrayed as quite a selfless character several times, both in their words and their actions, and if this money can help someone, it would seem to me very likely that he would give it away with no thought to himself and what that money could do for him.
But remember that you are still making your own choices as the MC, not as yourself, so even if you wouldn't give either Maya or Quinn the money, he might, and so you may end up having to choose which one gets it regardless of your own personal feelings on the matter.