[Bill_B]

Given the geography and variety of finale events, I'd guess that your options for it are more an or than an and for participation. I went to see the arch on Sunday morning last year. Made a reservation for the tram (under advisement) but still waited quite a while in a longish line just to get in the place. That is, the tram reservation does not get you admittance past the security checks. Then met some FRC team members in the room at the top. Might be worth seeing the city at night form there, since I don't think it is normally open at night.

You may have to pick which of the activities you want to attend. I think it would be quite a stretch to see the museums and the arch all in the same night.