@spotiche5- I think that you and your friends should do your research first before you attempt to install your garage door replacement. This job can be done by amateurs, but it's not easy. You have to consider the weight of the door, the movement mechanism, and the tools that you will need to complete the work.
It will definitely help if one of your friends has actually installed a garage door before. If not, it's important that you all brush up on your carpentry skills, and get some advice from the sales reps where you purchase your new replacement garage door so that you are all prepared for the installation process.