Hi , i am new to this forum an desperately need a bit of help.

I have a huge lawn to replant with either zoysia plugs or Bermuda seeds .

I have a few questions. I have tilled the soil thus far and levelling with top soil at the moment.

1) If i plant seeds which fertilizer will be better to mix in soil ?
2) If i plant plugs which formulation will be better ?
3) When is best to use a non selective or post emergent herbicide ?
4) How long after can i plant seeds or plugs after spraying ?

Thanks in advance .