ah, the modern lazy alpinist.
i should say that if you find a nice day and bother driving up there, then just schlep your gear down the huntington ravine trail and go for it. your route-finding crux would be the start of the thing... i'd suggest just following the first pitch of the northeast ridge of the pinnacle, and then just trending left. i've been up there numerous times and more than once found myself in the general area you're looking for. think short pitches, mellow fun time. of course the ne ridge is going to be a heck of a lot cleaner, and the cruxes are short, with plenty of fixed gear to pull on, 'alpine style.' i don't think your intended mission will be anything less than a fine day out.