Dash Mounting Ideas

So I did this when I took may dash out and left the windshield in. The two middle bolts are the toughest . It honestly wasn't that bad overall though, but I'm also younger in years and I don't have any other seats in car. If you were an older gentleman and a little less nimble with seats and other stuff in the way I could see how it may be a bit more difficult.
Look here whippersnapper LOL I'll get under that Dash come hell or high water seats or not LOL were you able to put the bolts in from the other direction?