typically with normal home garage tools all being non air driven, i would say anywhere from 4+ hours to complete it. with a full on auto garage having all tools needed, this should take no more than 3 hours. multiply that by the going rate per hour and you should be where you want. I know here in SoCal, I have talked to garages charging upwards of $100/hr and some at 65-70/hr. Just don't go to some bung hole of a shop that has no idea what they are doing or ever seen a kit before.
Seeing that you have a SR5, no need to worry about the XREAS being an issue.
Call around and more importantly, ask those trucks around you where they got theirs done and what it ran them. In Vegas, you should have no problem at all finding some.
As far as the tools go, it's really basic tools.
14mm box end wrench, metric socket set, jack and 2 stands. That is the least you can own and get away with a DIY at home lift.
Some one in Vegas area wanna help this fella out?