Upon some further poking around it seems you’re correct, the belts in the Staging System are one-off sites, though they’re far from being runnable in a Destroyer. Personally I wouldn’t touch those sites without at least a Marauder or a 3 man fleet.
Also just a tip your posts would read better if you left off the random emphasis caps. It makes them read in a very rant-y voice which I don’t think is your intention.
Generally speaking an entire site only nets about 20m in salvage and it can take quite a while to salvage a full site since bluing the wrecks is actively discouraged for server and client performance reasons and the wrecks are spread out over 50-150 km of space.
The way incursions pay out rewards is by a single lump-sum payment to the highest contributing fleet at the end of the site. The rats themselves have no loot or bounties and the salvage is lower than normal for a ship of that size and type.
It can still be worthwhile for a very new player but even an Alpha with decent Cruiser skills can find better ways to make money.