This will sound really generic and obvious; but your goal of any day 1 should be to make it to day 2 with a relevant stack. doesn't mean you need to be a chip leader or even average...basically you need to have enough chips to have fold
equity. if you can have a median stack going in to day2 that is pretty good.
You can't win these multiday tourneys in 1 day, so don't focus on chipping up too fast. If it happens, great. But ask yourself how many day1 chip leaders have won the main event? many of them don't even cash... don't be an early bird. try to survive and fly under the radar with an average stack.
Also, this is really obvious to say but...don't worry about how big the field is or how far it is to the money...just worry about your 1 table. Tournaments are won 1 table at a time. you don't have to knock out all those other thousands of people, you just have to be profitable are YOUR table. Just play solid, shoot for an average stack. It sounds deepstacked enough that even if you end up with a half an average stack you'll still have a playable stack.
tournament life is everything in multi-day tourneys.
also, at the end of the day a little "mini bubble" occurs. there will be some players who are short who don't want to have to come back a second day and will take big risks trying to "double up or go home" but many more players will nit up nearing the end of a day. Exploit this at your will, as your stack size and table position allows.