It's hard to give an exact size as it could differ based on the publisher and printing. Generally, they tend to be much larger than the regular comic format to showcase the art and details more prominently.
You can start by measuring the paper accurately. Then, mark the dimensions you need using a ruler and a pencil. Cut along the marked lines carefully with a sharp cutter or scissors.
First, you need to have a ruler or a measuring tape. Mark the 11x14 size on the paper and make sure the marks are accurate. After that, use a quality cutting tool to get the desired size. Be careful to cut along the marked lines smoothly.
If the X - Men were in the Frozen universe, they would bring a new dynamic. Wolverine's healing factor would make him a valuable asset in the cold and dangerous environment. He could withstand extreme cold and any injuries that might come from the ice. Storm could collaborate with Elsa to create more elaborate weather patterns. The X - Men's mutant status could also cause some interesting reactions among the people of Arendelle, who are not used to such extraordinary abilities. It could lead to a story about acceptance and cooperation between two very different groups.
In my opinion, X Factor wasn't the best. There were other X-Men comics that had more compelling storylines and character developments during that time.
It's hard to say for sure. X-Factor had its moments, but there were other X-Men comics in the 90's that were also highly regarded. It really comes down to what aspects of the comics you value the most.