I had a Canadian Daytona head that was quite damaged on one side. Last year I posted a picture of it on the former board and another member offered me for sale a Canadian Daytona head that was damaged, but on the other side. The two heads could be cut and the good sides used. So I proceeded to cut the two heads and painted them orange (leftover paint from a snowmobile project). It looks pretty cool.
Another pic.
It's nice you were able to find a solution!
I have few other sets of regular RD400 heads I could use, but I knew I could do something different without spending too much. I can always switch back to normal heads if I get tired of it, but so far I think it looks awesome with the silver and blue.