AF107 is $12
The matching bolt is $0.25
As far as the HYCAR washer goes, why not use the one you already have?
This is alot of work just to save a little bit of money
Everyone is already buying a air regulator.
The only thing that you will need to purchase now is the air cylinder and make a aluminum piston.
The air cylinder is fine thread while the standard setup is course.
I will toss you this bone
It is manufactured by SMC and the part # is NCMB106-0600
You can purchase it from several vendors for under $30.
Here is a place that has it for $25.20 plus shipping. ->
http://www.airlinehyd.com/VS5airline...r=ncmb106-0600
The alum piston is $12, the screw for the bottom of it is $0.25 cents. Both can be ordered directly from Magma.
You don't need to make up a extractor because the air cylinder always stays attached to the piston. I take my Air Blow attachment and push it against the bottom air attachment hole on the cylinder and use air to retract the piston.
I got about $50 in my Complete air Cylinder setup.