Speedmaster Left Hand Fork Outer Tubes/legs/sliders

My left hand fork slider is cracked and I need a replacement. I am getting quite mixed up on my search but I will keep my enquiry as simple as possible. I believe from a VIN number search that the part for my model is T2041409. Is T2047094 also compatible?
I see that at some point around the manufacture of my bike in 2009/between carb and EFIs, fork assemblies changed from T2047093 to T2041405 and left hand sliders from T2041409 to T2047094, or vice versa.

I am trying to get to the bottom of what would be suitable replacement for my cracked left fork slider so I have options: 1. Buy a left fork slider. 2: Buy an entire fork. Either would be okay but I can't figure out whether I MUST have a T2041405 or T2041409 or whether there is some interchangeability?

This is a somewhat crude approach but when I have google image searched T2041409 and T2047094, one seems predominantly black and the other silver, would it be too convenient for the only difference to be colour?? I hope so.

Advice on what I can replace a broken T2041409 with very much appreciated.