fittings for hardline

[bbbc10]

im going to be running accuair setup and going to be mounting it in the bed of my truck and I want to run hardlines from the vu4 into my bed floor, an replace the leader hoses from the compressors to the tank with hardline and any other lines that will be seen in the bed, I need help finding fittings for the hardlines to do all this as im not finding anything online an im getting diff answers from ppl just wanted to get going in the right direction with fittings and where to get them....I want it to look like the setup in the pics