Try here the one thing I did different was used an oven instead of a heat gun. Let the oven get to 180F, turn it off, then place the whole housing, minus the bulbs, in for about 15 minutes or so. Take it out and start pulling apart. If it doesn't go, put it back in for a little longer. Just be sure the oven is OFF!
The two above night time photos are how they look when you don't open the packaging all the way and forget to install the LED diffusers behind the gauge faces. These are how they are supposed to look... My OCD kicked in once I realized I f****d up. Plus I had to adjust my tach needle a little bit. All better now.
Looks good. But you know when I look at them they look a little to the right I think you should redo them!