Well I ordered the two tools and neither of them fit. But of the two the 816239 actually is really close to fitting. I'm going to play around with it and see how easy it will be to make it work. The tool as a whole is designed perfectly to how I would want to use the tool. I took the coil cover off today and the height of the tool fits to remove even the 4 and 8 cylinder coil packs. I'll try to post some pics later or maybe if I get the tool to fit.
On another note I was able to finally get a BMW part number (83300496274) for the OEM tool and the good news is that it is avaliable. The bad news is it is $300. The guys at Tischer were able to look it up and it comes up on their website too.