I am looking at buying several Jacobsen Turfcat front deck mowers and wonder if any of you have ever owned or worked on them. These are front deck mowers, some flail type, some rotary some diesel, some propane. Models are T422, T423 and T455G. It concerns me that both type decks are driven hydraulically and not with a mechanical setup (driveshaft/gearbox). Are parts available for these machines? Who makes the transmissions in them and what brand propane motor do they use? I know the diesels are Kubota. Just looking for any insight on the quality of these units and if they are worth owning. Thanks.