Did it locally in my driveway lol
I decided to go with piping. It's stronger and I figure the intake air is passing through too fast to be significantly warmed up, annnd the airbox over the ITBs is metal too and gets hella hot, so any heat soak reduction measures are moot anyway.
It'll make a nice Saturday morning DIY project. So instead of looking for a guy to weld the barbs, I'll just drill and tap them myself.
A 45° elbow, two vacuum barbs, some couplers and hose clamps, and a couple celebratory beers in the fridge.