When I first built my Norley, there were a few parts I wanted to fit, but I didn't have the money to buy them at the time.
Now a few years later, I can finally upgrade to the parts I always wanted. The first being a pair of custom built shocks, complete with adjustable damping and preload. In the pic I'm holding a Hagon Nitro shock from another of my bikes, just to see how it'd look on the bike. The body and spring of the Hagons are a little wider than is usual, so there could've been clearance issues, or they could've just looked wrong on the slim Norley.
Turns out they fit ok and I felt they didn't look out of place, so I ordered a pair from Hagon, who will build them to suite the weight of the bike and me too, along with the length and finish I want.
The alloy parts can be anodised in a range of colours, while the springs can be polished or black powdered coated. BTW the springs and the shock body itself is made from stainless steel. Useful here in rainy England.