really appreciate all the info guys.
I think I will have to go with 2 x 30 Amp lines.
Reason being, I am yet to find a 50A pdu under $1k.
I think I might have to ditch the switched version also... so basically just use the pdus as glorified extension/expansion cords.
I still need to find a way to set up remote access/power cycle.
Worst case scenario... I will be having 3gpu rigs there as well, running Win 10 with Teamviewer and guess i could use one of them as a main access point for the network to log into the ants.
That would take care of remote access but still need a way to power cycle remotely.

I have been using the tp-link smart plugs (with kasa) at home for the gpu rigs and they do work ok but no clue what I could use on the c13/c14 plugs for the ants

Any ideas?