Speaking to the PO now and appears that there is in fact a brass 'seat' that goes inside the pump union cavity and box cavity. Says they are easy to fall out and it is possible that JTO sent both without these seats that are past of the pump and box. Toyota does not just sell these seats, but are included in rebuild kits for each. If this is the case, I will remove the lines, drain and inspect everything. I suspect the hose is fine and pump itself is fine....
Case in point: Power Steering Pressure Hose Bubble Flare – JT Outfitters - https://www.jtoutfitters.com/product/power-steering-pressure-hose-bubble-flare/
This is the pressure hose. I'm not sure what the end of your line looks like, but yes, in general there should be either a brass "seat" for older style or a an o-ring on the end of the line. Sometimes both. If the end of the line is all threads like a brake line, then you would need some sort of brass washer but yours doesn't look like that type of line based on the nut and what I can see.
Pull the line and take a pic of the end fitting.