I went with the classic air on mine with direct fit controls. I must admit, I miss the look of the original A/C push button controls and the blower is LOUD and sucks up power (voltage). I probably need an upgrade to my alternator. That said, I love the smaller box and under the hood looks fine. The system works great and was a simple install.
All of that being said, I was originally going to put in the factory stuff and if your interested, I have a rebuilt box as well as rebuilt controls (restored by performance car graphics) that I don't need and will sell.
Good luck