W123 SLS Lines broken. Making repair.

[Renntag]

Hello all. I will do my best to update with photos but for now I need some info. My car sprung a leak which turns out to be rusted SLS lines. Sadly they are one piece from the engine bay to the SLS valve in the rear. I tried to get the used lines from the Texas TD listed on here, but could not connect. Back up plan is to cut the lines, add fittings, flare the ends and piece in a new section with unions. Fingers crossed.

2 questions:

1. Does anyone know the operating pressure of the system?
2. Does anyone know which port is pressure in the return on the back of the valve?

I believe the bottom port is the supply and the top is the return. My lines broke and I am not sure which was which. They broke above the crossmember.

Any help would be appreciated. I have it all apart now. Two lines are already flared and ready. I am bending the new sticks of line now.

Pictures to follow for those of you that are searching for info later.