Identifying RoW M030 and related questions

[pothole]

So, I have a few questions regarding identifying RoW M030 suspension and also some questions regarding the spring compensation plate thickness nand Bilstein dampers.

I picked a used RoW M030 from an early 986 2.5 kit for cheap.

Part number on the rear roll bar is correct for RoW M030. Good start.

1. The paint codes on the springs are:
Front: red yellow
Rear: red red.

From what I can tell that is correct - can anyone confirm?

2. The spring compensation plate paint codes.
Front: Green
Rear: White (I think)

From what I can tell, green means 6.5mm, white means 3mm.

So, do the spring compensation plates effect ride height? Can you use thinner plates to lower the car a little?

3. Finally, one of the rear shocks appeasr to be newer than the rest.
The Bilstein part number is clear: VNE-B332. I've searched the number and from what I can tell it's coming up as a standard Bilsten B4 shock, not an M030 spec shock.

Is that correct? My guess is that the shock failed or was damaged and was replaced with the wrong part.