Not taken as a smartass. In the past trying to do something as simple as changing a dash bulb can be difficult (for me anyway). There are some basically impossible, as well as anything "under dash" related. Our 67 cuda is ac equipped, radio, console. All that stuff is difficult to work around to say the least. While removal of bucket seats, console isnt difficult. It does add to whatever task your tackling.
With dash "tipped down" during this task, the access I have had behind the dash is way better from above and thru windshield then from underneath. Removing the AC heaterbox/heatercore is different then the standard heaterbox.