Another lift suggestion

Firstly, I know this is probably the millionth time there is one of these threads but you'll really be helping me out. I just took delivery of my White trd off road DCSB. I want a small lift, about 2-3 inch and keep the wheels, just add bigger tires. My truck will be used as an estimating truck during the week with a ladder rack and a single ladder. I also have a 20' boat that I will tow for short distances. Im crazy about not having the rear sag so I want a lift probably with replacement leaf springs. I don't even actually mind a slight rake that higher in the back. Is there a kit that you think would be appropriate? Secondly, what is the biggest tire I can fit on the stock OR wheel? Thanks for any reply!

 

This guy just did a lift himself with 3" ToyoTech and has a great stance that won't break the bank too much like Kings or Icons.