Passenger Side OEM Radiator Hoses

[66LSx]

Guys,

1966 C-10
5.3L LM7 Vortec (LS)
4L60e

Passenger Side Radiator inlet/outlet 1-1/4 & 1-1/2" dia

Curious on what any of you guys are using for radiator hoses both upper and lower. (Part Number/Brand) I think the lower hose can be just a normal '2004 Silverado' lower radiator hose that is trimmed a bit. The upper is were I'm at a loss. What is everyone else using when you have a PASSENGER SIDE upper radiator inlet?

I figured with the width differences not being outrageous..... someone/anyone with an LS swap radiator (griffin, entropy etc) will have some input hopefully as to an OEM looking hose (no corrugated flex) that looked/worked good for them.