Cheapest Tilt-Over mechanism you can find. Strong, brilliant and available anywhere in the world! If you went down this route, the hinge point needs to be slightly higher off the ground so that when your antenna, (say DX Commander) is layed down, the ground and driven plates (SO239 etc) have some room. So ideally, block it up by say 100mm / 4-inches off the ground with with long bolts or a lump of wood. Love it! 73, Callum.
PS – YouTube slow with the Subtitles / Captions. I will update as soon as they materialise. C.