Welcome to TN! I'm sorry but the notion of calving doesn't strike a bell with me. I presume it's slang for "going bad" but if not, please translate it.
There are several parts of the cooling system that would affect the fan operation. The hose could certainly be the problem but why did you focus on it? I'm not "fluent" on V-6s. Would it be feasible to take the hose in to a hydraulic hose fabricator (we have them all over in the states it seems) and see if they have (or could get) the necessary fittings and make you one?
Here is a copy of the system of a 3VZ. Yours will likely be similar.
Luck,
Kep
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Often, it's the loose screw between the steering wheel and the driver's seat that needs to be fixed first!
Stock 1995 Camry, 5SFE, Sedan.