I'm in a similar boat..
I have an old prochem super extractor single 3phase vac and a 100psi pump
and an Excel Extracta.. 2 x 7.2 3 phase vac (ones better than the other), and a 100psi pump
The pump died on the excel today.. just wouldn't kick anything out but the motor was running, ended up being a blockage..
I can't really afford a new machine, but i can't afford for it to break down again..
So do i
a) Replace the pump and the rubbish vac on the excel (estimated £500)
B) Buy a newer machine but I can only afford second hand.. so maybe a steempro (900 ish), but maybe facing potential issues..