Raul, glad to see you're back. Nice post - focused and concise.
Halcro does not need a road map to find the way home. No, Brakemeier did not reinvent the phono cartridge, but it looks like he did everything right. Why should he spend time building the motor when Ortofon, VdH, whoever, can build it to spec for him?
Years ago my wheel man had a '68 Chevy Z-28 Trans America road racer. This was factory custom ordered set up for the Baja. It was aluminum alloy from head to toe (rear) w/ 3/4 race cam. The Holly 4-bbl was the size of the block. You could stick your fist down each barrel.
It had a close ratio 4 speed, Holly shifter, clutch like a tow truck, and a 25 lb. spring on the gas pedal so you didn't blow it up. Sucker red lined at 7K rpm - did 60 mph in first gear.
I drove it home one night cause dude was in space. I did 165 - my personal high and I still had pedal left. Got home pretty quick too.
Best regards to you and your family this holiday season,