So, I'm in the process of refurbing an iPhone 2G right now. I've got the original box, and all the accessories, but the touchscreen is broken. I got a fantastic deal on the whole thing, and an even better deal on the touchscreen assembly. I'm wondering if I should refurbish the entire thing, and not just the front. The replacement OEM back (new) & antenna cover are $25, is it worth it, or should I just leave the back as-is?