The Jegs Nickel plated Alum are here
JEGS AN Hose End Fittings - Nickel | JEGS
Summit's
https://www.summitracing.com/search/...rder=Ascending
On the cloth covering I think I understand the style your after, typ called textile covered hose. Not shiny like the Poly weave ones are.
Problem is the ones I could find from Gates,Aeroquip,Parker all had a max working temp of 212F
FC647-12
Hose by Vendor | Aeroquip | Aeroquip FC647 Textile Braid Low Pressure Socketless Hose - Air and Multipurpose Hose
Teague Custom Marine - -12 FC647 CLOTH BRAID HOSE
Not saying it doesn't exist though.