It's MUCH easier than you think, fiddly but easy, if you're looking for super easy then try and find a soft top and frame that got pulled off someones SPEC Miata or track rat. They're out there and changing a top that's already on a frame is super easy.
Contact 'Project G L.A.' in Baldwin Park for advice, products and maybe even someone to do an install.
You can also check out their 'G-String' which is awesome for the summer, Miatas are small and the top comes down but ask anyone who owns a convertible how fun they are at 1:00pm on any given July day, airflow is almost nil in these things to, a little better with the top down but not much.
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Two bulls are standing on top of a mountain. The younger one says to the older one: "Hey pop, what's say we run down there and fuck one of them cows". "No son" the older one says,"Lets walk down and fuck 'em all".