Update: Got this done with lots of drama, all my foolish self being overconfident - what should have been a day's operation turned out to be almost 4 days - I had to redo twice due to silly mistakes
. Learned hard lessons for the rest of us DIY'ers. I'll put up a little gotchas writeup that I should have known better. Otherwise, it' not a tough job compared to something like valve stem seals. Pics coming ...