Suggestions for re-finishing Klipsch Kg4?

I have a pair of Kg4's and love everything about them except the black finish. Has anyone ever stripped and refinished a pair of speakers like this? I'd like to get down to the natural wood and just oil it occasionally. Are there any risks to using strong solvents--fumes and foam? Any good way of getting rid of the original finish without solvents?

Thanks for your expert advice,

Stephen