I hate to mention this now, as it might be too late, but why dont you get the bits & pieces from a sunny or an N12 pulsar that would allow you to put the lights & wipers on the steering column. I dont know the real name of it, but it's the piece of plastic that goes under the steering column shroud. With an N12 pulsar you can even get intermittent wipers, you just have to grab the control box from under the bonnet of the car. I did this with my first sunny using an N12 whatever, & the intermittent wipers were great. You can even get variable speed in some models.Doing this would allow you to remove the headlight & wiper switches off the dash panel & clean it up a little bit more.

yeah the best steering collum plastic to use is from the series 2 bluebird...costs about $10 from a wrecker and is easy as to install....will make the dash look a lot better