Use the Hektor glass on a bellows on an SLR. The head of the Hektor screws off from the focus mount. If you are lucky, you will be able to find an adapter to fit the Hektor head on normal M39 things, then to find an adapter for M39 to fit the camera bellows of your choice will be easy (I know there are M39>Pentax and M39>Nikon adapters that are very inexpensive). Leica probably made a Hektor>M39 adapter--they made adapters for everything else!
The other possibility is to find the focus adapter to fit the Hektor head on a visoflex. Behind that put on M39 extension tubes as needed to make up for the missing Viso, then a Leica M39 > [your camera] adapter.
Either of these approaches will get you infinity.
It might be easier just to buy a new lens to fit your camera.