So, "with a little (LOT) help from my friends...", Success! I'll celebrate in about a week once I make sure I'm not getting leaks from the hose replacement. As you can see from the pictures, it's a tight fit with the stock heat exchangers. The valve needs to be very close to the oil cooler connection to allow the HE clamp to be used and avoid too sharp a hose bend. Had to trim the hose down a bit from the original picture to get it to fit properly. (The 2 extra clamps are to prevent the hose from crimping at the bend until use/heat form it better.
All in all, a bit of an adventure. Once you know how it all comes apart and can beg/borrow/buy the proper tools, it isn't too bad.
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