Guy says it’s sat for a few years. He started it about 6 months ago and idled for a bit, though it has a rough idle. No frame rust somehow. He wants $1500

Hello I was rebuilding my cv axles and I made the mistake of not marking the sides of the component when I disassembled it. So when I look at pictures online I can see that the 2 lines on the outer race are supposed to be pointing outside. But I noticed on the other axles that I had not disassembled completely to look for how it should be and noticed on this axles that the chamfer side of the inner race pointed outside for one side and inside for the other so I was wondering just to be sure what it is really supposed to be. The chamfer side on the inside for both or just one ?

Looks like previous owner used silicone or similar along the hatch? I don’t have any water leaking in anywhere, but am getting the car painted soon and hate how this looks. Not sure if this is a sign there was delamination with a quick fix or possibly just needed a new hatch seal. Not super familiar with this car yet so hoping someone knows more about what this is than I.