Looks good, but I see what you mean about the armrest. If I remember right, I got mine from Classic Parts. The color matched a lot better than the LMC.
On the Dash Bezel, it's not really the gauges that's causing it not to fit right, it's the bezel itself. You got an 81-87 dash pad and your using a PRE 81-87 bezel. The dash pad on the 81-87 is shaped a little different.
Dash pads are 73-78 79-80 81-87
The bezels are 73-80 and then 81-87
They will work, but you will just have some minor fitment issues.
Other than that, I think it looks awesome
And I'll say it again, I love that color of gray your using.