Bidding on work

I am bidding on a 6,000 word medical report from Swedish into English. The end client has a budget of only $0.07 per word, and I had already offered a discount of 20 %, but they asked me to negotiate, and since I need the money I counter offered with my last offer at $0.09 per word. I am waiting to see if they can take it. It would be $540, so not too bad. It is due on Monday, so I would work over the weekend if need be. The agency is in the UK, and I heard they can be slow to pay, but translators seem to satisfied with them, so I will take my chances I think. Like I said; I need the money :-)!