interior color change question

[nick325i]

I have tan interior and I have had tan in my last two e36's anyway I am sick of it. I want to do a two tone look with black and tan, so I did some research and found some awesome interiors with those colors anyway I have used vinyl die before for things like panel or vinyl seats so I am fairly experienced with color changes but I have never done leather seats before, I don't know where or how to go about it I want to change my tan seats to Black is it possible or should I continue the search for a black convertible interior for sale, I am so impatient that is why I came up with this idea???? any input would be great, I though of leather dye like from a shoe repair shop but I want something I can maybe spray on?? please help as I would like to get on this project in the next week or so.
thanks