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I just started on the tanks. I ordered a kit with pieces made from PVC pipe and cast resin but the dimensions of the pipe looked to be quite different from the reference pictures. So like most other things on the project, I went a bit overboard. I scaled up the reference pictures and got some aluminum and made by own tanks! They are much closer to the real size. For anyone wondering, the larger tank is just over 4.00" outside diameter and 7.75" long (excluding the caps). I believe the original was made from plastic so it was probably 4.217" outside diameter sewer pipe which to be fair was the pipe size provided in the kit I bought. In aluminum however, 4.500" OD with a .250" wall thickness was the closest size I could find so we machined it down to 4.200" OD. This left us with almost the exact same ID/OD of the plastic sever pipe. This will make cutting the windows for the greeblies look more authentic as well. The smaller tank is right at about 3" outside diameter and 6.75" long (excluding the caps). My dad (who builds race cars for a living) was kind enough to machine the end caps for me. The caps on the larger tank still need a bit of machining to lighten them up but other than that, I think they look fantastic. The profiles of the caps also seems to match those of the real thing pretty well. More updates soon.[ATTACH=full]188709[/ATTACH][ATTACH=full]188710[/ATTACH][ATTACH=full]188711[/ATTACH][ATTACH=full]188713[/ATTACH][ATTACH=full]188714[/ATTACH][ATTACH=full]188715[/ATTACH][ATTACH=full]188716[/ATTACH][ATTACH=full]188717[/ATTACH]