The tournament should end between the 8K/16K and 15K/30K levels depending on the number of players (5:00-5:40 plus breaks with 20 minute levels, 3:45-4:15 plus breaks with 15 minute levels). End rebuys at the end of the first break if you want to allow them.
For chips, most people would probably say 10/6/6/2 or 15/5/6/2 if you want less change-making. The following setup will allow for 15/5/6/2 for up to 20 players, or 10/6/6/2 for up to 30 players (just incase your game grows).
300x T100s
180x T500s
180x T1Ks
84x T5Ks
Obviously get a few extras so your set doesn't break if you lose/break a few chips.