You will note that I called it a British Black Bird not Blackbird. Hunters are still in active service in at least one African country, Pakistan only retired theirs a few years ago and Switzerland a few years before that. How many modern aircraft will last that long. The one in the photo is actually 49 years old and still going strong (and flying regularly)!
The 'scaffolding' is so that we can ride in comfort to, and stay in relative comfort at, European rallies. Cars are no good for bike rallies. Besides, the better half and myself have reached ages where we do things for ourselves, not for what other people think of us.
Steps down off soap box.