I would like to find something to replace my greywater tank that dropped off my 1981 Sunrader somewhere along the way! The tank was small...I measured the space where the old one gave up the ghost. It is 30" x 13"W and about 8 or 9 inches deep. I know where to get a new one, but I know there are old greywater ghosts tanks out there somewhere. Where to look? I looked at one salvage site and all I saw were huge motorhomes and nothing as mundane as a holding tank seemed to be available. Where are the lowly vintage parts for a homely old 31 year old Sunrader?