Hey! i am making a roleplay map and i just need to know how to get those gas pump things for gas stations. And i need to know where i can download good models. Thanks!

the l4d games have a decent enough gas pump model, you should go from there

How do i get them though?

get gcfscape, open your steam directory and go to common/left 4 dead 2/left4dead2/ then open pak01_dir.vpk
or look for it in one of the left4dead2_dlc# folders with the same .vpk file names