If you're diligent, you may not need to scout using the assistant coach or camps. Personally, I find the camps to be inefficient spends (at D1, can't speak to other levels).
I scout a bunch to level 2, then pick and choose for l3, then pick and choose again for l4. Usually go state-by-state as I can judge potential competition/distance for each batch of those recruits and decide what kind of uncertainty tolerance I have. Also usually break it down PG/SG, SG/SF, PF/C in my searches.