Found this source for reducing coolant hose size for my conversion.
As I needed to go from 1" and 1-1/4" Renegade stuff to match up with most radiator inlet/outlet common sizes of 1-1/2" and 1-3/4". Quite the wide selection.
Transition Hose Splicers.
Quick shipping and very nice pieces.
As info O'reilley auto parts sells green stripe 5.99$/ft for the 1-1/4"
NAPA sells the 1" for 5.98$/ft and the 1-/4" for 5.77$ per foot. (yellow stripe).
Renegade will sell you a hose package for 120$.