The Caruso gears and Däs oil pump are direct replacements for the originals, although the labor hours for disassembly and reassembly make replacement a non-trivial job.
The parts are now installed in my engine. I've only ridden a few miles with them, but so far everything seems great: very quiet in operation and the bike is running well.
Interestingly, the OEM pump and gears removed from my 18,000 mile engine looked just fine... Tight clearances in the pump and no visible issues with the aluminum gears. However, given that the severity of the problems that these parts can give, I'm very happy to have steel gears and the upgraded pump in the engine. The aluminum oil pump gears do seem to break eventually. Some theorize that the gear failures are caused by the shaft misalignment that comes with a worn pump.
The old cam belts also looked fine - they were last replaced 12 years ago and looked new when replaced. I have four bikes with belt driven cams so their calendar life interests me a lot.
PS Edit: further inspection showed wear on the original aluminum timing gear teeth, so I think it was a good thing to replace both aluminum gears.