Straight hose IS available, not a good choice
Yes, regular black reinforced hose is available everywhere, but I'm talking about the molded hoses that go around corners. I work for an auto parts supplier, and we're able to provide hoses for 50 year old British sportscars. I could go into the back here and get a straight length of hose, but making compound bends seems like real jury rigging to me. For example, the hose from the water pump to the heat exchanger must make a 90 degree turn around the front of the block, down a but to clear the alternator, up a bit to clear the rear mount, the another bend almost right angle into the heat exchanger. That's a lot of stress on reinforced hose, I tried fitting some and it had a tendency to pull off, non-reinforced hose kinks so that no water gets through. Bottom line is that to do it correctly molded hoses are required. I consider my auxiliary to be not just motive power, but a safety item that may be my only salvation if I am dragging anchor or lose part of my rig. I don't want to rely on a bodged installation. Geez......
