I agree, sandwich and freezer bags are great to put in small parts and felt tip pen to mark what they are.
PNP has the "A" Frames on wheels with the Chain Fall to pull and engine.
The workers do not take your engine down to the office building where you pay.
YOU Push the "A" Frame with the engine dangling on the chain, and try to keep all 4 wheels going in the same direction.
Some times you can get some one to help push it out to the road from between the rows of cars.
Hard to push them in the deep gravel.
A good tip on pulling the engine. If you don`t have an engine Tilter. pull out the rear Seat belts to the end, cut them off and unbolt the end from the floor.
Use the metal end to bolt to the engine and tie the loose end to the Chain Fall Hook.
This works best when just lifting out an engine.
Taking the eng and trans together, bring an engine tilter.
Bring a 14V drill motor battery with some jumper wires. Work great to move seats, roll a window up/down.
And to check a Blower motor.
In the SJ yards, they some times only keep the cars 14 days and out they go.
Here in Carson City, Nv. I have seen MB`s 6 months.
You can check online to see what cars are there, but will not tell if the part you want is there. other people
are also pulling and breaking parts.
PNP is a great peace to learn how things come apart, so when you work on your car you know how it all comes apart.
I refer to PNP as PNP U (University)
I have worked all day on some cars, pulled the dash, CC unit out of a 240 and chased all the wires to see where they go.
The 82/83 240`s have the EGR control box behind the pass kick panel. chased the colored wires into the fuse panel,
through the FW to the front of the engine on both sides.
And take pictures.
Charlie