BioMax
+1y
Talk about a dead horse...
You can run no shocks if you'd like. You can also drive on your rims without any tires too... just make sure you run heavy duty rims right?
Also, there isn't a "best" shock. You use what you can afford and what is important to you. I personally love the Bilstein shocks for the street, but King shocks makes me a killer shock that is perfect for minis, they're only about $800 for a pair.
As for lengths, figure out what you need based on how much room you have and how much travel you get. It takes a little bit of thinking, but it's worth it when it's all together.