I think that your approach on the hoses is correct. Unless they are leaking there is no need to replace them for a preventive maintenance step. That would be like replacing your car because the old one might break. If it ain't broke don't fix it. When a hose leaks replace it.

Glad to hear that you reevacuated before charging. I think that leaving the vac on for 9 days was a very good poor boy leak check step, before committing the refrigerant.

Again, good work,