There is a chap on this forum (red bob ) who make's Bell targets,they look great.
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Or he can supply the face plate .Best to give Bob a PM to make sure he still does them.
Get your self some Titanium Dioxide powder and mix it with Johnson's baby oil to make a non drying paint.A little goes a long way.
The Hw30s is a great gun for Bell target shooting,my one is spot on and is great for young and adult shooters.
I made my Bell target out of hard wood ,with one of Bob's face plate's.I used a fire bell inside and it works a treat.
Les..