The aircraft serial cannot be read from the picture and the fact that there does not appear to be a loss recorded that fits the bill, i guess the damage was repaired.
Correct. Harriers are pretty tough and in extremis can always be fitted with a new wing (it's designed to be removed for an engine change).
The airframe is question was XV751, which flew subsequently with several squadrons, then went to the Navy as a GIA, and now resides in the museum at Charlwood, adjacent to Gatwick.
Here it is with 3 Squadron at the Finningley Royal Review in 1977:
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