Good thinking. The other problem is that I'm not convinced a 3-high stack will look good. If you could make it say 4.4 V8, that might be decent, but I'm not sure how well that would fit. And 4.4 would have to be the exact same font size or it would not look right.If you really want a 4.4 badge, I would buy two S40 emblems to use both of the 4’s to make one and then use the dot from the BMW badge. Or for a smaller one, use two 2.4i emblems from an S40 or V50.
You could also use one of the new AWD badges next to the 4.4 to save space:Compare the V8 badge to an early T6 badge, the latter is much smaller (for comparison as the 2.4 badge also is smaller I believe?)
I think the best solution would be to buy a D4 badge, the second latest one before they switched to the rhomboid ones. Maybe also e.g a 2.4 badge to get the dot?