That's an opaque wall in the diagram, I guess, is hard to see but I put it between the tank and heat exchanger obviously we would put the heat exchanger outside. Not much room on tinkercad workspace. We will source as you have instructed and update the list. In terms of getting huge orders of oil don't think that will happen not as easy here in Indonesia to source things like this so we will do what we can. Worry about getting bamboozled on the oil. I will try and get a tank that does less than 350 gallons but will need to see on prices. I don't have the resources and need to have something smaller that I can manage.
Also what about fiberglass tanks they should be ok would they not?
What about PEX pipes as they are much easier to fit and manipulate are they prone to degrading with this oil?
Oil or Hydraulic Pumps?
Notes:
Indium under the heatsinks or a copper shim.
Heat exchanger all metal properly engineered.
Transformer oil as specified.
Steel tanks (Fiberglass?).
Fittings and pipes metal (PEX?).
Do proper calculations before parts purchased.