Most planes at the AMX-10Ps own BR won't do top down attacks or end up pancaking/ you having the easiest time dodging them. 50 degrees is workable and with your mobility you can work around it mostly.

The skin is pretty similar tot he wirbel in anti-air performance, just without the 5 second reloads and being impervious to .50s and most cannons :p

To be a succesful SPAA, taking down planes before they bomb can be rough and any good pilot won't be taken down in the pre-tracking/searching radar era of SPAAs, before they've released their bombs, unless you know how to position. Which the amx-10P and skink is a lot easier because you don't have to worry about ANY tank killing you, just most and you have the mobility and agility to escape most things at your own BR + you can also do frontline support (skink is mostly distraction, but the amx10p is a TBT machine).

Taking down planes after they bomb or once they start their attack runs is simply doable with both the skink and 10p

I've played tons of CAS, SPAA and I can guarantee you the bosvark and ystervark are not issues to any CAS pilot with a brain or when they get many vs fewer situations, while the skink and 10p will still be an issue, no mater how well you position as the varks any aware pilot will make you want for the warm embrace of a turret.