rcs,
I think you will find that most golf clubs will have somebody doing this , but that doesnt mean to say you wouldnt get work, they cant be at every club every day!!
As for the rest of your services offered I cannot see why it shouldnt pay, My brother lives out there, and I do know a w/c who makes a reasonable living and the w/c out there do tend to clean inside and out at most places, and then you have got the glass curtains that seem to be coming popular there.
I would suggest a course on hard floor cleaning as another feather in your cap, plenty out there.
I have to admit, Its an idea I have been toying with myself moving there , i was surprised at the amount of carpets and rugs the the expats actually have and of course plenty of leather, still think i,ll bide my time for a little longer .
geoff