Cannot Find Appropriate SSD Mounting Bracket

Hi. I'm trying to replace my hard drive with an SSD. The disassembly went great, but I got stuck when my mounting bracket wasn't long enough to use the iMac mounting system (it didn't have all three holes on each side). So I bought another one, and it didn't have threaded holes for the iMac mounting system. Then I bought a third one, and it works perfectly with the mounting system EXCEPT that there isn't enough length on the data cable. It just wont reach. The cable is just long enough to fit a regular drive. I don't know what to do. Please help.