Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)
I think some of the old part listings in the FAQ are outdated. There is no "top plate" from RED. You can use two top mounts, rods and universal mounts to mount items to the top. ElementTechnica sells their Top Cheese Plate, which mounts between the two top mounts (RED's 19mm top mounts or their own 15mm top mounts).
Without the top mounts, it will be hard to mount rods on top of the camera. Element Technica is sold out of their top mounts as well. There are still ways to mount things, but you may just have to wait for the parts you want to become available again. ...Use longer rods on the base of your config and extend them out the rear for mounting the cradle and other gear.