How much to install ladder bars???

Well, I know this isn't going to be popular, but after having a long talk with the chassis shop yesterday, I have decided to go ahead and do the ladder bar setup on the car. I feel that he quoted me a more than fair price, that was a little less than what I was thinking so I decided there was no time like the present to do it. I know the SS springs will work, but I want something that when I want to throw some more power at the car and go faster I can do it without making another big suspension change. No offense to you super stock spring guys though, OK. ;)
dont have to be sorry,**** if i had the funds mine would be ladders too