Like I said if there was some skookum kit hiding in the drawers, then maybe more. But to take it all, without itemizing it all and investigating I'd throw out a 1-2k figure.
Lets say theres a full and complete metric+imp set of craftsman wrenches, sockets, ratchets, and its not all just thrown in drawers so you can verify its all there - thats gotta be worth low few hundred bucks, etc.
When the old fella beside me passed away his kids didnt think he had much in his shop. Cheaper woodworking machines, etc. What he did have however was in his Lee-Valley and Lie-Nielsen hand carving, sharpening, wood planes, chisels, etc all stashed nicely in their own rolling cabinets. I was sure to tell the kids to be certain they got good value for said higher end kit and even itemized a spreadsheet for them with retail prices and a suggested used Calgary market price. They ended up getting more for the higher end hand stuff than then did for the Taiwanese no-name brand woodworking machines.
We've touched on this before in other threads, but having a decent inventory list/spreadsheet of your shop gear, and what you think its local market value might be can be very useful for your fam and friends if you ever suddenly kick the bucket. I keep such a list with all my bigger woodworking kit listed (and my lathe until i sold it), serial numbers, and approx market value derived from kijiji/facebook/ebay for my wife.