Never get anything electronic that's aftermarket--for instance...do not get an AM thermostat...get the wahler (OE). Don't try any AM sensor of any sort.
Our ET is fine if you take care of the system--mine lasted 9 years.
Behr radiator is fine--make sure you get the right one for your auto or manual.
I doubt you could find AM hoses for the cooling system, but if you can...don't get them! lol