You could, but it would be inaccurate to the show and would look the wrong length. On the other hand, assuming you're planning on taking this to a con (?) to the casual observer the bow would look the same, as long as it was black limbed, so I think it's up to you really, whether you want to compromise 100% accuracy or functionality. Bear in mind that the risers (handles) of the two bows are very different, with the 58" having bulky limb pockets, inserts and a different shape from the 48" version, so if you are planning to customise the riser as in the show it will look different and proportions will be different from the actual prop.