2nd hand travel system

Anyone got ideas where to sell our travel system? I'm not aware of any shops locally that will buy them to resell, have found one online in Burton but could do without driving 3-4 hours up there at 34 weeks pregnant. It's been listed on Facebook for weeks with absolutely no interest, even when we've reduced the price dramatically. EBay wouldn't accept the listing as it comes with a car seat. We're moving house soon and really don't want to be moving it but I can't justify taking a £1200 travel system to the tip!