i agree with Brian about doing the bar ect first. i recently got the guys at ultimate suspension do mine and they actually build the shocks to siut each individual set up and ask a lot of other questions about loads you might carry or tow and a tone of others, as you would expect from any decent suspension company. the thing that i like is that you are dealing with the manufacturer and the warranty is good. lifetime on springs and 80thousand or 3yrs wich ever comes last! anyway it seem to ride good on and off the road so i am pretty happy so far.
hope that helps. nath