Probably not worth the trouble. Peach Tree / Indian Valley are excellent goat trails for a motorcycle, but in a car you've really got to pay attention to where you are on the road and what might be coming at you. I ride them in approx the right-hand 4ft of the pavement when visibility is limited, so if something's coming at me I can get out of the way (no problems in the 10 years I've lived here and ridden there regularly.
Instead of Peach Tree, go west on 198 from the southern end of 25, take 101 south for a few miles, and look for the road to Lockwood. Take that west to Lockwood, then take G14 past the lakes and into Paso.