On my 78 I use bulk hose by the foot, for my 73, it had A/C so one of the hoses has two 90 degree bends in it.
For that hose I just bought a pre-molded heater hose of the correct diameter, with the bends that I needed (no specific car, just browsed through what they had behind the counter on the wall). I then cut out the section I needed and away I was! It was about $10 more than what i would have paid for bulk, but for the way it all hooks up, it was necessary.