btw, I'd say $11K is a reasonable price for the car.
If it were me (assuming you've vetted the car + seller appropriately), I would phone the seller during a lunch hour or on Saturday morning & offer to meet him at your bank in ONE HOUR if he'll accept $10K for the car without further delay...
Funds can be wired from your bank rep's desk to seller's bank in 10 minutes for about a ten dollar fee, (or often no-fee)--- then do the title signatures/notarization if necessary-- right there on the spot.
Of course make sure all ancillary stuff is agreed upon in advance on phone or email-- such as inclusion of any tool kit, tool kit pouch, jack, spare, owner's manual, receipts' files, spare parts, etc.