I won't plumb the machine in...will deliver excellent shots reliably......I'm sure I will need to get better on my end with technique
Well, if I may suggest a change of approach.
Don't go all out at this point - espresso is a journey, not a project.
If you want excellent shots reliably, go for a better grinder - nothing less than a Mazzer major. Grinder is more important than machine, so if you want to start at the top, start with the grinder. I suggest an Elektra Nino, although that is a matter of opinion - plus it is only available in 220 volts.
As to machine - go to an excellent intermediate machine which if you do your part, will reliably give really good shots.
I suggest a Mini Vivaldi for machine, or a Vivaldi S1 V2 with flojet setup on a cart.
This would be an excellent setup to learn on, and a great starting point to your journey.
With a Nino, and a Vivaldi s1 V2 you would be starting out somewhere around 5K, and would have an excellent setup to use and learn on while enjoying great espresso before you learn how you wish to proceed with the finer points.