I recently found a nice Eico HF-85 preamp. The only thing missing is the metal mesh top (cage). However, I have a junk Eico HFT-90 tuner with a perfect top! The only problem is that, while the top from the HFT-90 is exactly the same size as the top that I need for the HF-85, the top from the HFT-90 does not have the "cutout" in the rear for the various jacks, etc. which are present on the HF-85. So, I need to cut out a small portion of the metal mesh in the rear to make it fit on the HF-85. Question: Has anyone else done this? I'd like to know what is the best and easiest way to make a nice clean cut-out of the mesh so that it looks as good as possible. I'm afraid that I'l use the wrong tools, etc. and really mangle the top when I try to cut it. Thanks.