Prevost bus with major safety concerns getting fixed and overdue maintenance getting caught up.

Major maintenance long overdue by time not mileage. Maintenance with the proper fluids and specifications is very important. New bus owner is getting his bus up to snuff. This Prevost marathon conversion was in a very concerning condition when it arrived. The previous owner told the new owner he had most of his maintenance done at Marathon but judging by all the permatex we have found being used vs proper gaskets i doubt that was done at marathon. First video on this bus https://youtu.be/79UUSGHGslA?si=7eGgsFIaBmxuvRw9