Well Phil, I generally come down against touching a masterpiece of an Old Dead Guy. But, I confess I have often thought if it were possible to build a back tee to back right corner of existing tee, 15 yards longer, making the shot a bit more acute angle towards the tree into the upslope or top of the hill above the bunker. That tee would have to be perched and contained in a brick or RR ties platform to work above the spillway. If the tree goes, one more grass gull wing bunker in L&M style winged off and tapered to the right rear behind the first sand one en eschlon, with ideal LZ over the fat of the first bunker, and a penalty into the second grass bunker for the slice or inablility to carry up the bee line straight towards the hole, up right side. Similar to #6, or 11s right sides.
If the tree dies natural death as 13th died, could you see that architectural adjustment?