Happy to bring along some ideas and plenty of support. Can show off some wire frame stuff, controller box, etc. Will happily mock anyone with stupid questions.
My background is electronics and IT.
See you there
Have you thought about using 5v, only 5 power supplies. Injection is going to be easy, inject at the top.
50ma x 5120pixels = 256amps
256amps x 5volts = 1280watts
6 x 300watt power supplies = 1800 watts
1800watts at 70% usage would be = 1260watts
You could get away with 5 supplies.
I used a piece of PVC waste pipe as a sleeve, then concreted it in place. My pole is a NB50 pipe about 3mm thick. 4M high with no guide wires. The base ring is high enough off the ground so I can get the lawn mower under the tree.