I must admit, I didn't think of that.
I like the simplicity of the design, but the other part of this is I'm trying to keep a group of high schoolers busy with the project
I might do that as a secondary test to see if the results align.
Doing a little more research on power supplies, seems I might be able to buy a used server power supply with a single 12v rail and use that.
HP Integrity RX6600 Server Power Supply Model RH1448Y PN: 0957-2198
Looks like it's rated at ~130A, and can be purchased for around $80.
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