Are you going up to point arena then through Boonville? It sounds like you are trying to go south since you mention Santa Rosa. Ukiah is out of your way if that’s the care.
If you do go to Ukiah, there are L2 chargers in Point Arena and Boonville. ABRP shows it as using 23% on a LR RWD 3. 64 mile trip distance. It is usually pretty good at calculating based on elevation My 1600’ elevation gain commute calculates at 323wh/mile. It says 17% but usually takes me 20%. Even if you add 20% to the 23% you are talking 30% which should be around 90 miles of indicated range. Maybe stop at AV Brewing in Boonville and have a beer while adding some buffer.