Help with laying to rest my mom

On August 30th, 2018 my mother Michele was on her 3rd day of being a crossing guard. She was loving it. At 3pm when she getting across the street to allow some students cross she was hit by a car. she was thrown about 7 feet in the air and about 3 car lengths ahead. I was there with her to make sure she was drinking water and to read the book she had gotten me. She had just turned 67 on August 24th. 
This happened in Springfield. My brother Chris, the love of her life Donald and I Annette are not prepared for the expense of having any type of service for her. There is already a plot for her, yet still it is costly.

Everybody who met her instantly loved her. She was devoted to her family and loved ones. She was there no matter what the cost was to her. My mother loved children and when she became a crossing guard she was the happiest I've seen her in years. Words can't begin to describe what she means to all of us and all she came across.

This just happened on Thursday the 30th and today Friday the 31st I have to see about a casket and anything else that goes with it. I would love to be able to lay my mother to rest without worry hanging over me with these costs. I shall be in charge of all the funds, but any decisions will be made by the family.