I've done conversions like this before and most are a pretty simple swap. Sometimes you have to change the water pump to a slightly longer or shorter neck and make sure what the direction its turning.Water pumps turn either Clockwise or Counter Clockwise depending on the why the belt is run and the cooling system will not work properly if you use the pump in the wrong direction.The other thing is the A/C pump pulley is a pain to change so you're better off getting the pump off a donner car that has the right pulley.