Disconnect Switch Handle Extension

[OL JENNY]

I'm planning on moving my disconnect switch from the starter bolt location in the engine compartment to a location where the switch will be in front of the drivers seat. I am doing this on a 1930 Tudor. My question is for those of you who have done this, how have you extended the shaft with the handle through the floorboards or frame. I do not have machine shop skills, but they are obviously available. Thanks