I can get the lube lines done. The hose is smooth black rubber. The best thing is to send all the lines. Don't lose or damage any compression fittings as the pre-war were a different thread pitch and not available as far as I know. They will stay on the hose anyway.
I can't do brake lines. Jim Friswold at Vintage MB parts may have them 503-639-1158. He should be in the vendor database if he is not. He has a lot of pre-war items, probably has 540 K hoses and the lengths may be the same. Brake and Equipment Warehouse makes hoses, but I'm not sure they have the fittings, which are a bit odd, with copper sealing washers built into the ends. I may be able to get these fittings from Cohline, but in the past I think they wouldn't supply brake hose fittings, just complete hoses. The problem is they also won't make custom hoses in small quantities.