If you wire it for a 7-pin you will be prepared for about anything. Whatever trailer you may want to tow, there will be an adapter that will allow you to use the 7-pin receptacle.
curmudgeon: noun; a crusty, ill-tempered, irascible, cantankerous old person . . . .
79 27' Holiday Rambler Statesman, 78 32' HR Imperial, 85 36' HR Imperial 5th Wheel