First of all, I must admire your filial piety and wisdom. In addition, if you want to repair, repair the graves of your nearest relatives, that is, the graves of your father and grandparents, which have the greatest impact on you. Grave restoration is a luxury. This is a face-saving project. Repairing the grave is mainly to change the transportation, erect a monument to collect the spirit of the hall, and simply repair it with brick and cement. The most important thing is to set a prosperous direction, so that you will change!
You can take some photos of the mountains around the ancestral graves, before and after, and then stick them in the unintentional altar-Shuiban Tuling, and someone will give you detailed guidance. Good luck!