Does anyone know WHERE to locate cylinders for a Beaver Marquis (2000)? We purchased this coach from prior owner and after waiting for it for better part of a year, received it just 2 weeks prior to our scheduled first x-country trip. Upon delivery, the seller / prior owner advised that the left rear hydraulic needed to be replaced and he would do so upon our return. Well, we were gone 2 months and have been back for 3 months ... and it hasn't been done. Supposedly the part is unavailable. This was a very bumpy excursion for 5000 miles that we'd prefer not to have again. Any information will be greatly appreciated. Thanks.