Pink cables, pulley wheels and tape sound like a risk, but you never know how it turns out :).
See attached picture of how I did the threadless stem/ahead. Teflon tape on the threaded part. Downside: no room for preload adjustement of the headset, so setting it up is a bit fiddly (removed wheel, than a clamp on top of stem/fork crown). Worked fine for +/- 300 km with no play or issues so far.