Purchased rolls of the rubber tubing. 3/32, 5/32, 7/32, then the other sizes you can do those piece at a time as those are not all that long, just get enough to do the job.
And do everything inside the cab too.
I had the vacuum switch on the Emergency switch was faulty leaking .. So beware that,
Typical most part houses do not have exact OEM material sizes, so a tight fit or use clamps on the ends might be needed.
I had three rigs and all them went this way and needed it!!
Don't overlook your three metal tubes set, on passenger side, behind manifold, that go down to trans side, those can be clogged or have holes in them possibly.
Remember, It's a good idea to "suspect" all the manifold vacuum porting switches, EGW vlv, The round vacuum accumulator on firewall, and every part which may have cracked plastic port tubes etc.
So to TS it might be a bit entailed yet once you locate things you though might be OK but are NOT you will learn what almost ALL Jeep owners have REALIZED the same..
Eliminate Every possibility of vacuum leaks, as then in the future or your ownership, this is already addressed and should not haunt you..