Everything !

Honestly, a walk along the track, and taking photos from hand held position (or lower angle) would be very useful to spot uneven surfaces. But I imagine that would be impossible in the given conditions, so at least:
A few photos along the straight would be useful, so we can see if there are still big undulations after the resurfacing. Something like this:
From start line, looking towards last turn.
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From start line, looking towards T1.
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A couple of photos straight in front of the pits, something like this (no need to catch all pits in the same photo - on the contrary - 1 photo per/box would be great). What you see below is recovered from a very angled photo so things are deformed

.
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In the marked ares below there are some sewers; I need to estimate how low they are compared to the asphalt surface so any photo where I can see both the asphalt and the sewer is good.
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Other than this.. anything. No amount of photos is "too much". If the guys are kind enough, I take as many photos are they are willing to give us

. Thank you in advance.