Depends entirely on conditions along the route.
IMC over Truckee in April probably means ice. High westerly winds at 9000 and 12000 can make for some nasty turbulence at either site, but you can overfly peaks near Truckee (highest is just over 10,000). Though I've been in 30 knot winds over Tahoe at 13500 that were completely smooth.
April is a good month for it. But if you're concerned about winds, you might try further east (though not in restricted airspace unless cleared, of course).
The most important thing is, leave yourself an out. Stay far from terrain, carry at least an hour reserve fuel, and divert if the winds at landing are too nasty. If you find a strong downdraft, turn away from the Sierra and dive for airspeed to get out of it. Backtrack if needed if you don't like your decision.
The airplane is adequate for it, as long as you lean properly, and watch the winds. This includes at takeoff from KRNO unless the density altitude is below 3000 (i.e., really cold).