Finally made the fuselage cutout to install the right flap pushrod. As others have stated, this is a very iterative process. Attach the flap end bearing, insert the rod thru an initial "0.25 hole and continually mark/dremel until you can attach it to the flap linkage and sweep it thru its travel w/o interference. I ended up cutting more into the fuselage floor than was necessary, so intend to make a corrected paper template for use on the left side.