72 lower radiator hose???

[Bern74]

Hi
I have replaced the old 72 motor with a 350 from a 1991 GMC, I kept the front pullies from the 91.
I am having trouble getting a lower rad hose that will fit. I originally used the hose from the 91 and it did seem to fit pretty good but there was a kink in it close to the rad outlet and I had alot of overheating due I think to that kink in the line.
The local suppliers don't have much in the line of flex hose and I am thinking of getting one from Summit Racing. The problem is how long a hose do I need? I am thinking 30 inch??
Does anyone one out there have some experience with this situation?
Can you reccomend a hose length or is there some other thing I could try? I did keep the original radiator shroud so the hose will have do some fancy bending to work with the new water pump location

Thanks