This probably won't suit you (because I dont think you have crossbars) but this was my solution. I just bolted two 'L' shaped shelf brackets to an old toolbox, then bent the brackets into a hook shape that I could wedge between the loader cross bars. Its not pretty, but functionally it's perfect. Very easy to get at. Holds glasses, gloves, WD40, rag, tin can (to sit on the exhaust at night) and a few tools in easy reach without me having to twist and turn to get at it. Its quite secure but it lifts off easily to raise the hood. It doesn't obscure the view at all, in fact I hardly even notice its there when I'm driving. In this position its REALLY handy and gets used ALL the time. Its not just a bit of emergency storage space. (One benefit of having an old tractor is that you don't worry about what things look like or how you are going to attach them. You just go with what works).