I do not understand why you want to build a power supply around an MC1466. It's been obsolete for maybe 30 years or so. There are a gazillion power supply schematics in all kinds of configurations and power classes. My own preference is something build around generic opamps. They never go obsolete, can always be serviced or replaced and they are much easier to design around then discrete transistors (although that can be a fun exercise too, so as always, it depends on your goals).
Also, have you ever thought about some EDA? I've been using KiCad for quite some years now, and even before I was using KiCad, I put about a week of my life into finding a better EDA suite as I had previously used. Doing schematic and PCB design on a PC is such a huge advantage that I would never could go back to the old flattened dead tree carcasses.
Even old guys can learn new tricks. Some claim it can delay dementia / alzheimer (Not altimeter you stupid *&^%$#@! spelling thing) for a few years, and a few more good years is worth fighting for.