Hello, i have 3 ESB RF tops for sale. The RF housing is cast in an off white durable resin with the 2 LED holes pre drilled. You just need to drill the underside for your choice of stalk attachment. The lens block is cut from Perspex and constructed in 2 sections as the screen used item. 3 holes are then drilled into the block and an aluminium plate glued to the underside. 8 rare earth magnets are glued to this and the inside of the housing to ensure a secure fit. Finally the Polaroid view finder is cast in clear and black resin, these 2 parts are fixed together and glued to the Perspex lens block. I'm asking £40.00 shipped, please PM me if you are interested in one.