Old thread, just updating. The TWF still makes the best rep for the Konstantin Cheykin Joker. As noted above details are very nice with the only downside being the cloudy crystal on certain angles. I finally got the time to fix this and I changed the crystal to a double domed sapphire crystal with blue AR coating in the underside.
It now looks clear and perfect in almost all angles. This would be even better with a flat AR crystal.
Here are some pics and as you can see there are improvements on the clarity of the crystal. (Looks better in person than on the camera).