It's going to have a 150 or 170 spring on it, depending on how much energy you want to store in the springs. 150s will take a good shock to control the housing on the hit.

Need to know shock manufacturer and part number, or extended, compressed and installed lengths.

Does it have an adjustable shock mount so that ride height can be adjusted independent of shock installed length?

Why are the ladder bars wonky one side from the other? Is it sitting that crooked or not put together right? I see you said it was level. Was that eyeballed or measured?

Once it's back together, you'll have to neutral everything and start over with the corner weights.

Weight distribution has less to do with hooking (or not) and more to do with leaving and driving straight.