modify after effects template

hello I have a after effects source file for a commercial that someone had put together for us however we have changed our main brand name due to merging with another entity and we need to modify the animation/promotional video to reflect our new name and new look. basically I need the color of a car changed to black and i need neon green stripes down the car instead of purple and i need to change the text wording as well as if possible slow down the video a little bit as people have said they have a hard time reading what all is being shown text wise because it goes so fast.. that is all we need done on this video I have several other videos I need edited as well but we can start with this one I need a true professional who can help me get the job done right the first time as I am on a deadline and have no time to spare. thanks!