There is some good advice here Dillon. Let me add another "old guy" perspective.
When I was young like you, I wanted to mount every decent animal I got...so I did. But over a lifetime of hunting, I started to collect "junk mounts" with no place to put them. (no animal is really junk!) On the other hand I know avid hunters with a basement full of unmounted horns that no one gets to look at.
IMO a goat is pretty much a "once in a lifetime" animal so as Elmer stated, think about where it fits in your long term hunting goals. If it is one of the top, do what you can to preserve it as such. If not, then plan accordingly. I have to agree that a goat almost needs a full body mount to do it justice, but it is really all up to you and your long term plans. Regardless, take lots of pictures and you can always save the memories in that format.
Have a great hunt and good luck!