Should have measured twice! I drilled one of the pilot holes for the roll bar in the wrong place. No big deal really, I figured it out before I drilled the actual roll bar weldement. Drilled the other holes along with the new one, and then clamped the roll bar in place, and using a mirror and flashlight, drilled up through the bottom through the roll bar. Removed the roll bar and drilled every thing to size. Fabricated spacers, and drilled them to size. Was able to get the two more difficult bolts in, along with the spacers and washers without too much difficulty, after I elarged the lower pilot hole so that a socket wrench would fit in there. Ran out of time on the forward bolts, but those won't be too difficult.
