How about a open box, commercial 1 group machine with these stats:
5.8 liter boiler
2100W heating element
220v
rotary pump
Automatic boiler filling
Double gauge (Boiler and pump pressure)
Heating control by pressure switch
Manual steam tap
Manual hot water tap
Dimensions (W X D X H) mm 430 x 510 x 510
Net weight 42kg
for about $500 shipped?
Maybe that's too much machine.