If you are open to it, I have a suggestion for your guide rail "kickstand". I've not tested this out yet, but the idea for my table is to make a triangle shaped kickstand that mounts to the edge of the table at the hinge point. The placement/angle of this kickstand would make it so that the track stops at the correct height/angle for me to easily grab it from the front of the table. The cool part is how to keep the track up and out of way when you need it. If you weight the end of the track by the hinge, you can get it to sit back on the kickstand with nothing supporting the front. The trick is to get just the right amount of weight (adding washers maybe?) back there so as you pull the guide down it hits a breakover point and then the weight of the guide is enough to keep it down on the table. This system does not require any thing to move around or misplace and you can operate it one handed.