Yea, looks like room for working, just a little tricky underneath because it is hard to tell where the wall
is located, but still doable.
What you have to do, is drill a hole underneath into the wall space, so that you fish cables up the wall
to each location.
One location will be the switch, then the others to the lights.
You would have a junction box similar to the one there now.
Run a single cable to the switch location and single cables to each light location. Then add a cable
from a power source.
Then make all the taps in the junction box.
It takes a lot of measuring and mapping out before you do the work. This is so you know
where you will be drilling to line up the hole to the location, so when you make the hole upstairs, you can
get the cable and pull it out the opening.
I will tell you now, if no experience it will take a long time and frustrating.
I have spent an hour or so, just to get a single cable to pull out the opening upstairs.
That does not include any other labor.
Think of it this way:
You drill a hole into the lip bot***** *****p of the cabinet, so the cable will come out
into the area underneath and will not be seen.
You then have to line up a hole you drill in the crawl space to make it pretty close to the one
You then slide the cable straight up the wall about 3 feet higher than the location upstairs, then make the cable
stay in that location so it will not slide back down.
Then go upstairs and use a very small wire to slide into the wall with a small loop and fish the cable to the hole
Then you have to work it out of the hole.
Two people works better so you can communicate with each other on what is happening, but I have done many alone.
It would take 4 or 5 pages to write up a sequence in the entireity and then still miss something
that could make it harder than it looks.
Thats the summary, not sure if you wish to tackle the job or not.