A bit of visual progress today, clecoed the skins to the elevator structure to discover I have a few issues. 1. I'm not happy with the trim tab hinge fit, I'm going to replace it & drill the holes in it myself. Removing the rivets will more than likely damage the trim tab so I'll order a new one of those too. 2. The left skin has 8 holes of 1/8" dia. top & bottom in the inboard bay parallel to the spar but there is no structure beneath them! Is this a mod? Is it a mistake? No similar holes in the right skin. Should there be? 3. I'll need to adjust some of the ribs for a better fit. 4. 2 ribs have the rear most rivet holes missing, top & bottom. Need to drill the ribs then disassemble, deburr & prime. I'll leave the elevator & go on to the stab till I have the parts from the factory.