I bought a SWE1 kit for my RFM, but it arrived with a broken lightsaber. I figured it was the transformer, but as a friend and I took the lightsaber apart to replace the transformer, I saw that the neon was broken.
I ordered a car neon kit after seeing posts on here showing that this could work. The neon was too small and did not seem very bright.
I went today to a custom neon shop here in town. The guy measured the tube and did a uv test which showed that the tube glows green. He then made a tube for me while I watched as he explained the process.
He charged me $40 for the tube and said he would be willing to make more for me if there is interest. He told me he would recommend increasing the size slightly to make it more durable and had suggestions about how to ship without it breaking.
If you are interested, respond in the thread. If there is any interest, I will send them to you for $40 plus the shipping price.