good advice so far. one question is- what style is this bow? depending on what it is made from and the style, it may not be suitable to make shorter. if it is a ELB, or american longbow style then leave it long. if it is more of a flatbow, you could shorten it some but I wouldnt go to 48". to shoot that short, you need a short draw style of shooting. Pat is right, I would start from scratch. does the bow have any antique value? might be good for a collectable.