Yes, I don't have the "BNSF SD70MAC Engine Pack" at this time either. I think I have seen it in "the WayBack Machine" but I can't remember the exact date snap shot for the set. When I did see it I was not interested in it at the time. I will be re-searching for that set now...
Even though It is one of my least favorite paint schemes, I do want to have that unit in my "Roundhouse" since the loco is a part of history.
I do have the SLI.BNSF folder from another set, and I found that a couple of other SD70MACs that SLI did, such as BNSF_SD70MAC_9871.s, has similar texture layouts that are very close...
SLI has release many Loco shapes/textures over the years that are almost identical.
I downloaded the last two Conrail C40-8 units that were uploaded, and I don't have those shapes either. But I did discover the freeware CSX C40-8 is nearly identical. I already started making a couple of updates to one of the units, so I could use them. Things are going well from what I can tell...
But, BNSF SD70MAC 9647 seems to be a bit more complicated though...
UPDATE 1:
Found the Wayback Machine Link for the "BNSF SD70MAC Engine Pack":
http://web.archive.org/web/201011140...ginepacks.html
Let's hope SWREG has not disabled it...
UPDATE 2:
The "BNSF SD70MAC Engine Pack" has not been disabled and can still be purchased....
Make sure to leave off the "http web archive org ..." portion of the "Add To Cart" url link when entering it into your browser!
...I just purchased my copy and i'm downloading it now!