68 Dart pump and cylinders

Can't help you on the cylinders The sebring ones I did have do have a mid mount pivot and mine mount on the top and bottom. (66 dart) But I do know a 70-80's and early 90's fox body mustang has the right connections for my 66 which look to be the same as your 68. Sebring motors will also work (check connector, different years have a different connector 2008 sebring does for sure) the cylinders have a pivot point on the cylinder and might work if you can make a bracket for it to mount to in the correct position for your car. all the hose sets I have seen in the salvage yards on later models are too small or "just" make it on my 66 with creative routing.