i only have one ds so no use to me but i just spotted it whilst hunting ebay for something else and as they seem hard to come by second hand i thought i would post a link in case anyone needed one as they are expensive new arent they!!
cgi.ebay.co.uk/Maclaren-DOUBLE-special-needs-major-buggy_W0QQitemZ230365021570QQcmdZViewItemQQptZUK_ HealthBeautyMobilityDisabilityMedicalET?hash=item35a2d34582&trksid=p3286.c0.m14