That tree will heal itself, do nothing. I think you can tap as soon as the area heals so nothing looks fresh, you do not need to wait for bark to fill in. The edges of the damaged area will heal up and the bare wood will dry out. You can tap that tree next year, but stay clear of the damaged area.
4-5 taps? The current guidelines say never more than 3 taps. That may be a 2 tap (bucket) tree for a year or 2 then go to 3 taps. You may never be able to tap the damaged area, that depends on if the bark fills over the area, if yes, then tap above or below but not on the damage area. Even if it heals in completely, a tree that large grows so slowly that you may never get 2" of need wood over the damage, so you won't be able to drill a hole 1.5"-2" deep to tap that spot.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.