I have an old Epiphone ET-280 and I've been fixing it up lately and realized that the pickups are pretty much shot on it. For anyone that's encountered one of these, are there any replacement pickups that will fit on it? I'm not sure of the string spacing and I'm not quite sure how to measure it so if anyone can help there it would be great. I don't really want to bring it in to the guitar store here since they'll probably try to charge me $100 just for looking at it. Here's a picture of it. It has two large chrome covered pickups (they're single coil).