Well I got it in me to do the turn signal mod. Took maybe 2 hours from start to finish, counting a good hour for a lunch/warm-up break. And I took my time to solder, run wire-loom and tape everything back together neatly. Almost looks stock.
I gotta say, this is FAR better than the factory setup! If anyone's on the fence about doing this mod, DO IT! I used the writeup over at FRF as the one here won't load the images for me.
Next mod for me is probably going to be an explorer console mod... need a good place to put some switches for heated seats