I ordered a black Ez-on from the following link about two years ago. It took me about 10 hours by myself to replace the top, with no experience doing it. Spend the money on a quality top like some of the others have said, and get an electric staple gun, its much harder without one...
A roll cage is not required, but the shoulder harness mount points need to be at a specific angle to the shoulders. You can use the rear seat belts mounting locations for the shoulder straps and that should put them at an acceptable angle.Check out the diagrams at the bottom of this page...
I’ve been running this 180 amp alt in my Spyder for a while and it’s been great. I have a multi-amp sound quality system that I compete with and it’s been working wellhttps://www.qualitypowerauto.com/item_273/Mitsubishi-Eclipse.htm
I talked to English a few weeks ago about tuning my black box and they said that they won't do it because they have a higher probability of bricking the ECU, and they don't want to deal with that on their dyno.