Hi Toledo,
I think it would be too tricky to die them with all of the Alpina diamonds across them? I did consider that option too, I think I'm going to try and get the current diamonds re-coloured as there's plenty of wear left in the mats. You can get standard OEM black E85 mats too as i bought a set from Prentice Portadown in NI (but probs still available from any dealer?). It may be an option to get the Alpina pattern added to them in stitching or paint? They do look like the shape may be slightly different in shape to the originals though.... i haven't laid them out next to each other yet.
I'll keep you posted on what I manage to achieve with mine and if I find anywhere decent to complete the stitching or paint.
Cheers