Not sure how these are rated re car vs trailer use but I went with these : Dunlop 195/70R14 Sport Classic 91V, edit - decided I would npt be exceeding 210kph so went with the Dunlop LM Sport 704 195/70R14 91H
Others that may suit : https://www.stuckey.com.au/Tyres/TyreSearch?Search=195/70R14
Russell at Stuckey Tyres (Brunswick, Melb) may be able to source Advan.