Vacuum Lines

I have a 1989 S10 Pickup, 2.5 Liter Engine and A/C. I am trying to locate the small color coded vacuum lines under the dash, I have checked the dealership and various supply houses and parts houses with no luck. These are the super small, hard plastic lines. Any ideas or info on where to purchase them would be greatly appreciated, Thanks.

If you still need help.
Rubber vacuum line will splice in broken ones.
MT