I am going to try attaching a PDF of the dimensions I got off my 1985 016. Disregard the 2.83 dimension from the face of the bellhousing to the throw-out bearing because I'm not sure what position that bearing is in. I'm assuming whoever took the tranny out had cut the slave line BEFORE pulling the tranny away from the engine in which case the bearing is most likely in an clutch "engaged" position (pedal NOT pressed). You probably won't need this anyway unless you are making you're own adapter / flywheel.
Also - looking at the side view, the shifter rod is the circle that is up and to the left of the triangular group of mounting bosses.
Just so you know - I took these measurements by first scribing a line up the middle of a piece of plexi-glass perpendicular to what is now the "bottom" edge of the plexi. I then machined a very close fitting hole for the input shaft on that line up a ways from the bottom edge and slipped the plexi over the input shaft. With a sharp pencil, I drew two perpendicular lines on a piece of 1-1/2" birch ply. One represents the bellhousing face from a top view (to line the plexi up with), and the other the centerline of whole tranny. I then propped the tranny up off of the wood (because I machined the hole in plexi high enough to do this) and squared the plexi off the wood surface. Then I rotated the whole tranny until the output drive flanges were both as absolutely perpendicular to the wood as I could get. Of course the plexi is now clamped to the bellhousing. Now everything is square and I have all of my datums to start measuring. I did this with a plumb bob and calipers wherever possible, steel rule or god-for-bid a tape measure if I really had no choice. The results I feel are well more then adequate for designing a car. I also took a shot at placing the holes in the bellhousing but that proved to be a lot more difficult because as I found out many of the holes are severely tapered for the molding process. Plus, there is always a little bit of lateral play in the end of the input shaft, and I'm sure how much it moved "up" relative to the tranny because of the weight of the tranny while supported in this measuring jig.
Good luck.