Desperately Seeking Long DPN's

Thanks to Mike (stickywarp) I now have the shorter DPN's that I need. However, I am still looking for the 40 cm length DPN in the following sizes: 3.25 mm, 7.75 mm, 4.5 mm, 5 mm, 5.5 mm. I want metal, preferably stainless steel but steel or other metal will do. I want to give my knitting belt a go and I need a wider variety of sizes (but the 40 cm length) because I have no idea where my tension/gague will be when I use it.

Can anyone help, please? I've searched and searched the web but without success. Maybe one of our 1136 MWK members might be able to give me some assistance here.