Keep up the good work IDU! Can you afford the extra $5k? I don't recall how long the house has been on the market, do you know? If it has been a long time, you could counter again with your original offer, but you don't want to let $5k spread over how many years (30?) stop you from moving on. How much extra is that per month? I'm not saying do it, but you need to consider it.

Good luck and hang in there, you are doing great!