560k 2% resistor alternative
You can use a 1% resistor. 2% is not that common these days. You should use parts of adequate power rating (higher is okay).
If you can't find 560k 1% (I see plenty in stock, depending on wattage etc.) you can use 562k 1% (a standard E96 series value).
560k 2% is guaranteed to be somewhere between 549k and 571k.
562k 1% is guaranteed to be somewhere between 556k and 568k, so well
within the same range.