You haven’t given what other species are present including the reactants, but of the species you have listed, the hydrochloric acid poses the biggest concern under these conditions. Glass-lined equipment would be an obvious choice here. PTFE-lined equipment may work if it can tolerate the temperature. For a metal, tantalum might work. Whatever MOC you choose, I would recommend a lab corrosion test be run to confirm the suitability of the MOC under the conditions of operation.