Just start with baseline/standard/neutral everything. The OTK stuff works great at the factory baseline setup for 95% of the conditions.
10-15mm front spacers
neutral caster (top and bottom pills facing the same way)
1390mm rear track width
front blade bar flat
medium hubs
3rd bearing loose
Kart should work pretty good at all grip levels with that. We usually would twist the front bar from flat to angled or vertical if we needed more front grip and we would add caster as needed.