1972 Blazer ID Help

[vespaholic]

I just bought a 1972 Blazer.
Original paint, lots of patina.
It's got a 4" lift and larger tires.
As well as fuel injection.
Looking forward to getting it.
In the mean time I'd like to start searching for parts and doing some homework, so I'm hoping you all would help me out.
1) Spare tire carrier: It has the holes in the body for one but no carrier. I'm trying to identify what I need to find that would fit in the currently holes. (See pics). Any thoughts??
2) I'd also like to ID this wheel. Seller says American Racing but I can't find an AR that looks the same with the holes for the center cap. (See pics). Anyone know?
3) Side Mirrors: I'm guessing someone changed to originals to the little ones but left the holes. I'd like to get the originals and hopefully cover the bottom holes and the holes where the existing mirrors are. (See pics) Thoughts?