Pre-broadband, the difference between a 28KB page and a 3KB one was noticeable, but both are minnows by today's standards. So the site overall might run marginally quicker if you amalgamate the 8 pages into one, but the initial load could be slower. Whether either effect would be noticeable with a small site is debatable. The only way to know for sure is to build a site both ways and compare them!
More importantly, as you are a novice, I would suggest that the extra complexity of amalgamating the pages is simply not worth considering! Have you considered how you will test your code? Do you have a version strategy in place? Do you have an update process? Do you even have a backup???