Clearance questions on a new stove - with pictures!

I figured I'd get more views if I put "pictures" in the subject line.

I started my first stove fire of the, well ever. New house, new stove. I just started a small fire to check for leaks and see that everything worked right. The stove is a Quadrafire 3100 Millennium.There is a double wall stove pipe and a Class A chimney. There are (or should be) a couple of pictures attached that show how close the stove pipe comes to an A/C vent and a recessed light. The closest the light fixture comes to the support is 9" and the closest to the stove pipe itself is 15". The vent is 16" and 22", respectively. Is this enough room? I would think if it's enough for the drywall it should be enough for the light fixture and vent.

Now in the attic - there is blown insulation right up against the chimney. Is this acceptable? The insulation looks about 18" or so deep there. When the fire was burning I dug down into the insulation and measured the chimney and the hottest I saw it get was 81 degrees. Just above the insulation line it was only 75.

I never did let the fire get very hot. The hottest temps I measured were 240 on top of the stove and on the stove pipe right right where the two meet. So I don't know how hot it will get if I get a good burn and just let it run.

The pvc pipe is 3" from the chimney so technically it's fine. I can't believe these idiots put the pvc pipe on the chimney side of the supports instead of the other side. It would have added another 3" of clearance for no cost.

The rafter in the picture is 1-3/4" from the chimney so that's got to be fixed. If I build a sheet metal insulation shield that goes between the rafter and the chimney would that suffice since it's not combustible?

Looking up there is another rafter that is 2" from the chimney. Technically that fine but I may add a flat piece of sheet metal or something just to give me a warm fuzzy.