Great. Only two options. I like that. 
There is no brand name or specs on the front of the power supply. They may be on the back but didn't remove it. So I ran a few checks with a multimeter.
No load with only the display meter hooked up = 5.66v. Wondering about the accuracy of the of the display meter I checked to with a Fluke 85 = 5.55v. Sight variation but I was not as concerned with accuracy but more on a change over time.
Directly off the power supply with nothing hooked up =5.7v.
Adjusting the output pot no load = 5.77 to 4.5v. With the current load hooked up = 4.89 to 4.02 drawing .43amps.
It is an old power supply given to me a long time ago. So it can go away. I like "option B" a lot better anyhow.
The panel is mounted on drawer slides under the bar sink allowing it to be pulled out to work on. At first I mounted it on hinges but got tired of moving stuff out of the way to swing it to the front. While it is not accessible to kids the wife does store stuff under there and I would never hear the end of it if she got shocked. The timer has a cover that was removed for pictures.
So on with plan B. Did I say I like this option?
I really like the "point-of-use voltage regulator" ideology. This just makes so much sense. It also solves my windmill problem of being fed with less than the recommended 6v. I always worried about letting it run to long as some motors will overheat when supplied with inadequate power. Not sure about these little motors but it can be a big deal with large motors.
I like the voltage regulator that you posted. Small and cost effective. As they will reside up on the shelf I don't see the display being as beneficial as it would be if they were in a more easily monitored location. I found on eBay from California LM2596(S)at 10 for $11.94. The only spec difference that I can see is that the S model list the output current at 3amp. Thoughts?
Am I on the right track for a power supply? 8 amps.
And for LEDs
Both of these are sold by the same vender making it a little more convenient.
I do appreciate your time and information. I feel like I'm finally on the right track again. I had gotten tired of searching and reading LEDs post after post. Watching videos. Never finding the big picture that put all pieces together for me. You Sir, seem to have a knack for that and I am grateful.
The right power supply with the right voltage regulators and the right LEDs. Who would have thunk it could be so simple.
