Carb Cleaner wrote:
Unless it was sarcasm, in which case it's hilarious
No, brother, I was serious, compliment intended. Those terminal covers are a thing most folks would not even consider and are a step above, IMO. You also shrink wrapped other cable ends and that's also a good thing.
About the inverter orientation: I've wondered about this myself and the only thing I can assume is that it has to do is with thermal considerations. Fans and heatsinks are located for maximum dispersion of heat and the engineers are free to CYA about the orientation. If you're not operating at 100% output, I wouldn't worry.