i would NOT cut the valve guides at all, you can smooth around them but dont shorten them
you can have a new cam and get your rocker pads resurfaced at a good machine shop so they are "like new" as far as running in a new cam is concerned
one thing you need to look at in that head is the oil passages under the cam, theres a (more or less) 1/4 inch hole under the cam in each journal, make sure those holes pass all the way down into the head bolt holes they correspond with
as far as the death wobble, your trunion bearings, are they new?? you need to make sure your knuckles have the proper preload
then get yourself a couple pieces of angle iron thats very straight, and as long as the tires you are running tall
remove both front tires and clamp the angle iron to the brake calipers
you want them to be horizontal (aka parallel to the ground)
have a friend hold the end of a tape measure on the back of one side while you look at the tape on your side, write that number down
then move to the front (of the angle iron) and get a measurement there also
you want to adjust the tie rod till your front side is 1/8th - 3/16th inch shorter on the front than the back this gives you 1/8th inch toe IN
