I have completed a number of road trips over the decades, only recently logging those with GPX and digital photos. One trip returning to the UK after my first year in Australia, on a frame I built myself .
The journey, in 1995 Katmandu - via the H02 crossing over 2200 m, to Pokhara. Then crossing the border in India at Sunauli over to Varanasi : I don't have any pictures of this time, some memories still very strong.
Recently my hanger snapped on a sprint up a steep bit of Buxton Road, sadly the Rose and Crown was closed at the time, I was having trouble with my rear 105 mech, the chain getting snagged between the lower guide pulley and the derailleur frame....it was 20,000 km old a trip to Cyprus, two to Rio and 5 UK winters, so it did well!
Anyhow, looking for compatible hangers I found one, Wheels Manufacturing Hanger 334 is identical to BMC Hanger #37, and hopefully, not made out of the sacrificial chocolate the original seems to be
The original does come with two M3x12 Countersunk screws, which you can normally save from the old one.