Should just be like any other gauge install, mate. Tap into switched power down in the console for both general power and illumination, then run them up to the area with a solid ground. You'll then need to run your signal lines from the oil pressure sending unit (OPSU) and wherever you tap for your battery voltage.

If you're going to have to source gauges, might as well find quality units from the likes of Autometer. I suspect common, 52mm gauges will fit with minimal trimming - although I've not tried yet.

The inclinometers are often pointless. Mine shows upwards of 15? incline every time I leave a stop light, and swings wildly about on any turn. It's more comical novelty than anything else. I think a compass would be more useful, or perhaps, given these guys' penchant for overheating, a proper coolant temp gauge.

If you can't find a factory pod, you might find a universal out there somewhere, too.

Good luck.