extra £25 would go the gigabyte UD Z390 or ditch the palit 2 year warranty
As long as not upgrading that 8600K no real need to go with better board, so in that case would focus on better warranty 2060 with any loose change, yes.
For example:
Zotac RTX 2060 Gaming Twin Fan with 5 year warranty - £330
Looking at close to £850 though with a semi-decent cooler to OC that chip to 5.0GHz. But you do get the added performance with the 2060.