You can rent a spring compressor tool at pretty much any auto parts place. If you are replacing springs and struts at the same time this is an incredibly simple job.
Use the compressor on the new front springs and install them on new shocks before doing anything else. Then take out the old front ones as a unit and slide the new front ones in as a unit. I did this on my 13 limited awhile back. Fronts can be done this way in under 30 minutes easy. The rears are easier since they are separate parts, or at least I think they are easier.
Granted this assumes you are comfortable using a spring compressor and working with springs under tension. I've done springs/struts a lot over the years so I have my own jaws of life type spring compressor and its a no brainer for me to do it myself. However, compressing springs is no joke, so if it makes you uncomfortable then paying a shop is the way to go.