Yes- 38 would be the best route (only) for you. We stayed at big bear shores Rv park resort. Many people rent their spots. It made our trip. I have a buddy that is in the state park right now-so have yet to hear how it was.
Pics of our trip:
2014 Evo 2850 "Woodstock"
2011 Toyota Tundra "Clifford"
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2014 Stealth Evo 2850- "Woodstock"
2011 Toyota Tundra Rock Crawler TRD 5.7- "Clifford"
2013 Honda Accord Coupe V6 w/Track Pack- "Julia"
Just glad to get away