This is the current state of my bus:
This area is extremely dirty and grimy, and once I get the missing exhaust pipe fixed I'm planning on driving to a do-it-yourself car wash (with 10'4" clearance, fingers crossed) and giving this area in particular as thorough a cleaning as I can (spraying down from inside).
I'm not really sure what's there - is this a place I can spray willy-nilly without worrying about anything, or are there parts I should keep away from?
For my exhaust pipe, the parts I'm going to connect to have a lot of surface rust but are still solid - I was thinking about spraying ospho on the exhaust pipe and then painting it with POR-15. Good or bad idea?