Barely used M series anyone?

I've got a Remstar M Series Plus and humidifier that I had to quickly buy when my apap went south a week before a business trip. I'm back on the apap and am thinking of ordering an S8 Vantage as a travel and back up unit. The M series has about a week of use and is in basically brand new condition with all the stuff that came with it including the box. Has under 52 hours on it. Came from Cpap.com as will the next machine. 100 bucks off the current price and I'll pay reasonable ground shipping. I can take PayPal and I will want a scrip. PM me if you're interested.