What a great effort so far; nicely done. I can not offer any mechanical advice but as for the dial I would choose a nice silver guilloche paired with blued hands.
Hello J,
I am assuming that the show is held in the LVCC. Make sure the hotel that you book has shuttle service there.
The one and only time I have been to LV I stayed here; four nights were less than $200.
http://www.stratospherehotel.com/rooms_and_suites/#tow