>>4294688Set up eBay alerts and be patient. There's ALWAYS some idiot out there that's gonna low ball themselves. Got an A7IV for $1699 when they were going for $2200 used. Picked up a Sigma 24-70 art + the Sony 18-135mm bundle for $705 awhile back.
Switching to auction only then sorting by ending soonest is also a good strat.
Find a camera rental company in your area, chances are they have some beat up gear they're looking to get rid of for cheap.
Pawn shops are good for lenses.