Just trying to help......I replaced the top on my 68 and bought it from NPD. It is a EZ-ON product with folding glass rear window. My only previous experiment was replacing 84 Mustang top,20 years ago.I used the Ford factory shop manual and found it to cover every step. I would say that it is a challenge,but rewarding. Go slow and read the manual. Buy a GOOD pair of scissors. I bought a great pair on Ebay for $20, Gingher brand. There are many,many how-to videos on youtube and I watched many of them over and over,until I felt comfortable proceeding. Don’t throw anything away until done. You may find it a good time to check the latches and bushings and correct them,if needed. Take pictures of the old top and refer to them often. A good,heavy duty staple gun is needed. Watch a few videos and read the manual. Get a quote from a top shop and see how much you can save! Go for it !
Ford manual shows making a wooden jig/template to locate rear bow that is way off. Measure your bows and take notes.