Agree on the old bike bit and insurance companies though.
That's always the problem with spending money on something old and of little value.
Years ago, a neighbour had a Ford 7000 tractor. Collectors pay a lot of money for them now but at the time it was just another old tractor.
He had rebuilt the engine, replaced the clutch and brakes and fitted new tyres which all obviously cost a lot of money. Then a car came around a corner on the wrong side of the road and smashed the front cradle, split the tractor at the bellhousing and bent the front axle.
The insurance company offered a pittance for it but he eventually argued in court that it would cost him considerably more to replace it with what was basically a fully refurbished tractor.
It was worth it to fight it for a tractor but not a bike.