Salvage is worth like 2-3 mil per site, and then they’d have to split that 40 ways. It’s really not worth their time to mess with it at all. However, you can try asking around to see if anyone is willing to create and share site bookmarks with you. Who knows, someone might be feeling charitable.
But, the good news is that you don’t need anyone’s permission. And do note that you will not get a suspect flag for salvaging other people’s wrecks or scooping their drones. You can only get a suspect flag if you try to loot their wrecks (whether it be ships they lost, or rats they killed).
Anyway, you can join the WTM discord here. Once in, look for the “incursion-status” sub channel. A bot will tell you when and where the highsec incursion spawns, and even give an estimated despawn date.
Also, I recommend incursions as a career. WTM is a newbro friendly community, they allow alphas (as long as you can fly an accepted fit), it’s a social activity, and you can make 125mil an hour. Now, it will require about 2-4 months of dedicated skill training (depending on omega status) just to get into an accepted fit, but the required skills are very useful to have (i.e. shield tanking skills, Weapon Upgrades IV, etcetera). T1 ship prices have also gone up a lot recently, which means that you’ll need about 375 mil to put together a starter battleship. It can be a big mountain for a newbro to climb. But you’ll make that back in about 3 hours of flying.