I happen to have the removal/installation video that details the procedure, and quite honestly, I would not attempt it. A seasoned installer takes many hours to remove the old top and install the new one. The weatherstripping has to be removed/reapplied, the top has to be removed from the frame, and if your headliner is in poor condition that should be removed/replaced as well. There's quite a bit of gluing involved as well.
About 8 weeks ago I had looked into this myself for my own car and the shop (the guy has been working on Corvette convertible tops and interiors for over 20 years) said that he would require the car to be left with him for 2 days. His installation price was $600.00.
You may want to get the video and take a look at it for yourself, and then decide. To me, something like the fit/appearance of a convertible top is something that I want to be as perfect as possible; I'd therefore leave it to a well seasoned professional.