I hope you have a roof-rack. Otherwise, you will need a roof rack.
As for the muscle problem, that was difficult for my wife too, which is why she keeps me around.
An alternative, unusual for a kayak, would be a mini-boat trailer, but that too has its drawbacks (hooking up, license plate, makes backing up difficult, etc).
The mini boat trailer probably wont work for I suspect that the backing up part would be disastrous.