Honestly if you got some located that is where I would head. Surely not many hunters will be on public land for youth weekend, but I could be wrong.
Look at the location on Google Earth where you heard the birds, then see if there is a funnel, oak bottom, oak flat, step ridge, or any major terrain feature. Turkeys in deep woods will seek out early morning feeding grounds that look like they would make great fields (but in the woods they are actually flats).
I would set up in those locations if you cannot figure them out before Saturday. Hunting big woods turkeys is a lot like hunting big woods deer, except thick cover is not ideal for turkeys unless they are really pressured.
Does that make sense?
As far as calling goes, limit it to soft purrs and yelps right now, hard cutting can be used to shock gobble them right now but it can also make them call shy. I wouldnt call much at all until you are sure they are off the roost.
A rule of thumb is...if the hens are talking then you will want to mimmick them, but dont get to aggressive on them.
Its likely a Tom will come in silent too, so if they seemed 'fired" up at first, like they gobble every time you call but all of a sudden are quite then they are likely going to come in silent. If this happens it could take 15 minutes or so, but it could also mean the birds left the area. So use this time to figure out your game plan, dont call but still sit still. Then once you cannot handle it anymore or you are sure they left, then try to cut them off.