Update >
Here's a little quicky update...
Here's a view of the Negative Battery Cable & Adapter For IBS. The adapter is needed if you order this cable...
Battery is almost there. The tire repair kit in this image is from a different car. Cost me $15 on eBay. After buying it, I found a guy in Germany that had a brand new 1M OEM repair kit (with the yellow cap). Once I get that in the next week or two...the battery project will be complete...
The devil is in the details. So I was laying back enjoying my work and had the trunk flap up when I noticed that it has specific indentations for the 135i battery and tray position. Would love to change it but, once again, the online catalogs seem to only have the parts for the 135i. I'll look into it...