I don't think port or starboard matters..... I have a portable one that goes over the gunnel which is is fine for us since we don't use the boat to swim or ski and it's just used for emergencies....
If I were to install something permanent it would be these type of transom steps but not sure that would work for your outboard boat...
https://www.westmarine.com/buy/sea-d...iABEgK0v_D_BwE
