Did you miss the bit where Jesus asserted power over death and came back to life after three days? The sacrifice was a blood sacrifice, not a soul sacrifice. Eternal suffering doesn't come into it.
Theologically Jesus is to have suffered all that humans can suffer. So, even though He resurrected in 3 days, that doesn't mean He couldn't have experienced an eternity of torment. By His own account, He experienced complete abandonment by God.
Haha. No, I didn't miss that bit. I had it pretty well drummed into me as a kid in good old catholic Ireland. I'm no theologian but I was told he died for our sins which was awfully nice of him. I'm sure everything was roses post-mortem.
I was merely bringing the thought experiment to its logical utilitarian conclusion and showing that in doing so it has some mythical/biblical/primordial resonances.