hello guys, hope everyone is doing good. im at a point in my layout that if im gonna add a lower stageing yard, i need to do it now. i have never done anything like this before, so i need some information. my current benchwork is 48" from the ground. my benchwork is open grid and also around the room shelf style of 2' wide. should i add a second lower stageing level? if so, how far should the two levels be apart? also, how much running length do i need to get down to it? should it have an up route as well as a down route? any information pertaining to this is very much appreciated. thanks!