so there is a corvette 5 BO at my local guitar center for very cheap. the body is dinged at little and has some scratches on it. im a drum builder and all of the drums i build have a stain and top coat on them so i know how to "finish" wood. but iv never done a RE-finish. is there anything i should know, tips, tricks. or just buy it and leave it alone. its a black natural finish with what seems to be a light top coat. i was planning on sanding it down most of the way to just get rid of the smaller dings and scratches and then re-finish it in black agin. any pointers?