318 poly wide block

first thing I would do is limp it to a truck wash and have them steam clean the underside where you are going to work. Nothing worse than lying on your back and crap falling in your eyes, let alone missing a bolt and prying on something only to break a mount. That made it out to Burning Man 6 times? Thats an adventure for sure.
Yes and I don't know how long he has driven it with the clutch the way it is for all I know it drove out to burning man like this all 6 times. He definitely knew how to drive it well in the condition it is in.
Can I pressure washer it myself? Driving it somewhere like that would be at least a 45 minute drive in a normal car in this thing probably more like an hour and a half and the only way there is the freeway. I live in placerville ca it's an old town that was originally named hangtown it's 45 minutes to Sacramento which I belive is where I would have to go to find a truck wash like that but I could be mistaken.