PE Stamp for a natural gas hoses

1000 working psi 2) Natural gas is flowing through hose 3) Male NPT ends on both sides, swivel if possible 4) 3 sizes a. 1 ¼” X 12’ long (measured from connector to connector) b. 2” X 12’ long (measured from connector to connector) c. 3” X 12’ long (measured from connector to connector) this one may be longer based on how stiff the hose ends up being. 5) Whip to be installed on both ends 6) Engineered stamp to be provided with hose designs 7) Quote based on quantity of 20 for each size The job is listed above. I have drawings but I need them stamped