If OP upgrades all the way to MNL then it will be 105,000 not 85,000. But I strongly suggest saving 20,000 as the HKG-MNL-HKG F sectors won't be worth it.

Agree with QRC3288 for SFO availability issues. In fact, since the SFO F-equipped flight are midnight flights both ways, I'm not sure if that will be a worthwhile experience upgrading to F (actually, I've stopped doing J-F AM upgrades completely since joining MPC/AM. Only exception being a recent 170,000 splurge to upgrade me and SO on a LAX-HKG-LAX as they could confirm 1 seat right away.)

Perhaps OP can consider LAX-HKG as there are more seats available every day with a range of timings if they can fly out of LAX! It's the same price (for miles).