Well you didn’t give a price range that you were looking at, and those guys gave you the more expensive route so I will give you a cheaper route.
My first lift was a Skyjacker 3" lift with a Teraflex BB. I really liked this lift and it was perfect for my 31's relatively cheap also, they tuff country 3"kit is the same as the sky jacker and it may be a little cheaper also, you may want to think about looking to that kit. If you go that route I would get the full length AAL with the lift kit, and then when you add the shackles with the BB the ride will not be as rough. That set up will flex really well with a set off quick disconnects also.