Speaking of Bosco demo here is what I am think for the demo machine. Let me know what you all think. Here is the configuration I am looking at and after the configuration, I will explain my logic on why. Sorrento 1-Group with 110v element / plug, with optional steam cup tray warmer and splash guard. My initial thought was to get the steam control as a knob and hot water control as a lever to show interested parties the difference in overall control you have with one versus the other, but with the steam cup tray warmer being knob activated I am now leaning toward getting both the steam and hot water done as levers. I will also opt for a bottomless pf in place of the single spout pf, which will put the portafilters at 1- 2 spout and 1- bottomless.
The reason I am thinking the Sorrento versus the Posillipo is because the Sorrento is a cleaner machine without decorative trim wrapping it and without gold accented group cover heads. I think that would look nice, but since I will be loading / unloading the machine into / out of my car for demos a more simple machine makes more sense to me. I can see myself knocking the trip off somehow . . . . . I want to go with 110v because almost everyone / every place will have a spare 110v outlet and likely not a spare 220v or 380v. I want to go with the steam cup tray warmer because it is a very classic option that you will only see on the oldest lever machines, it is very functional when it comes to heating large or small quantities of cups, and it will let people see the control you have with a knob. I am thinking levers for the steam / hot water because they are just more unique than knobs and really no other reason.