looks like u had some fun. the places around us to wheel at is more of mud bogs and real aggressive stuff. looking for a more of a place like u have there.
another thing i have also read is that these engine don not like the higher vis oil. some complained of having oil leaks when they used it and the oil leak went away after changing back to 10w30. just what i've read.
i have a 95 and it seems to b normal for these engines after a lot of research. i read somewhere that normal operating temp oil press at idle it like 4-5psi. lol
In my area $60-$80 a hour about the norm for hourly labor rates. The shop I use when i have to is $60 but good ole boys. the kind that let u stand around and watch.