First off; how much lift do you want and what size tires do you want?
In stock form, your truck should be able to fit up to a 31 inch tire. With the leveling kit - 33 inch tire. A 6 inch lift will allow for a 35 inch tire.
Let's start off with the leveling kit. Several different makes and models are on the market. You can chose from 2 piece polyurethane coil spring spacer
kits which require you to take apart the strut (coil spring and shock), to kits made with different types of metals which simply stack onto the strut with longer bolts. For the part itself, cost can run from a little under $100 to upwards or $300. The polyurethane kits prevents metal-on-metal rubbing, which occurs with the metal spacers that stack on top of the strut. Then there is the installation. 2 piece coil spring spacers typically require professional installation and can cost a little bit more. With a little mechanical knowledge, and the right tools, either kit can be installed at home. Factory wheel can be used with leveling kits. No aftermarket rims are necessary.
6 inch suspension lift kits are the most popular. A diligent search of the internet will lead to several manufacturers. Depending on what your budget is, you usually get what you pay for. Typically, more expensive kits allow for more aggressive use of your truck. All kits claim that you should be able to install the components yourself. However, unless you have proper tools, a journeyman mechanic's worth of training & experience, and access to a lift; it is suggested that you find a shop that specializes in lift kit installations. Across the US, 4 Wheel Parts
is one of the largest chains who will be able to sell & install the lift you choose. Certain kits, like the Pro Comp (a subsidiary of 4 Wheel Parts), allow you to retain your OEM wheels. Other kits require specific aftermarket wheels; which will cost you more $$$ to buy the wheels, and then install the TPMS (tire pressure monitoring system) which is now on all new F-150s sold.
Body lifts are simply spacers, which with the use of a longer bolt, lift your trucks body several inches higher off the frame mounting points. While they do allow for more clearance so that you can put bigger tires on your truck, and cost less; are usually frowned upon because they just aren't as safe.