My approach would be to do an internet search for the part # on the hose and see if it's available from dealers or NOS sellers on Ebay, etc. Or just call a dealer. The first one lasted 29 years, what do you want?
No need to re-invent the wheel for this one. Or just have it welded and call it a day. I spend half my life looking for discontinued parts, this is unfortunately my wheelhouse.