Does any one sell SMC 4 in cylinders?

I need 2 4in SMC Cylinders either a 4in or 6in stroke. Any one have any use or new it dose not  matter 

CG1BN100-100-XC18 - SMC 4" Air Cylinder with 4" bore and 4" stroke - $125 ea   10-14 business days.

Hey who sells like a 8" stroke air cylinder? I know like parker, but dont know how to order from them or what would be best in automotive application. Any help is appreciated. Thanks, JR