addyjones1234,
Big job for a 14 year old.
First thing is, no one anywhere can explain to you what type of construction or modifications will be involved with out actually seeing the property. We can guess based on experience, but even that is not enough to trust.
You have to consider that you may be installing additional weight into an area that will not support additional weight. This can lead to structural failure/collapse of the building.
Also, electrical is a must. It will be needed to run your equipment and the HVAC ,such as it may be, in your area.
This means that either you:
1. tap into your existing hvac system(not always recommended)
2. Install a new unit.
But the electrical part of it is also required. No extension cords here buddy, sorry.
I would advise you to talk to someone with some experience and age that can help you to understand your local codes, building requirements and all the things involved on a local level.
Good luck,
Brien