Strategy for Oncology implementations?

OpenMRS Lastest Version installed with reference modules

Question: We are a group of students from Kosovo, and we are trying to implement the OpenMRS at the Clinic of Oncology, we have installed all OpenMRS and all reference modules, we are not sure which are the best possibilities to implement it, so the questions that I want to ask are

Which are the best modules to implement it in Oncology? Is there any possible way to add drugs as a drop-down list with a list of many drug concepts? Is there any possible way to add a body scheme to select where are the main doubts of doctors?

Thank you so much, because we are struggling a lot with this problems and we are not sure if we can fully implement this in Oncology.