I have been asked to give a price to cut a trim around a church and cemetary. Pricing the open area is the easy part, but in the cemetary most of the stones are very close and there are not very many areas that We will even be able to get a 21 inch mower in. What is the best way for me to determine a fair price, figuring that most of the time we will have to use trimmers. I believe there to be about 300 head stones that we will have to trim around. Most of the jobs we currently do require very little trimming and I am a little lost on how to figure this time wise. Thanks for any help that is offered.