I’m using the Olsa aluminum rails like those. I have maybe 30 rails for all the sockets in my two boxes. I generally like the ability to grab an entire series of sockets to walk to the project and not have to go back and forth to my toolbox for each socket. These rails work well for 1/4” and 3/8” sockets, but can get unwieldy for 1/2” impact sockets due to the weight. The caps can fall off allowing the socket holder and socket to fall off the end. Olsa makes locking caps, I bought some and they seem to work fine. I used my dremel to engrave the socket size on the top of each post for 3/8” and 1/2”, yes I’m that kind of ****.
I would recommend getting them set up the way you want then cutting the rail to length. Resist the urge to put multiple sets of 1/4” on a single rail, shorter sets are better. I have a set of metric Vim tools 1/4” sockets on their excellent short magnetic rails ($$$). The short rail sets are very easy to grab and take to a project. I could see cutting the aluminum rails in half to split the sets on the 1/2”. My Sunex 1/2” impact sets use two full rails per set from 10mm to 32mm, splitting this into quarters would probably work well.
There is no perfect socket organization. If you have something where you easily grab individual sockets from the drawer then you have no organization if you have to take them away from the box. The rails are less convenient when you are pulling from the box. Magnetic rails that can hold the rails down to the bottom of the draw so they don’t fall over pick up metal debris from the workbench. I think the best solution is the old metal trays like my dad got with his Montgomery Wards sockets back in the 60’s and 70’s.