I was going to mention the valves, but forgot to in the hast to complete my note at the time. I would get all new valves. The machine shop can grind and reseat them. I can tell the performance difference after my rebuild and I'm sure it was because of the valve job.
They can also pressure test the head to make sure you have no cracks etc. It cost me an extra $20.
It is very important that you tighten the 4 bolts evenly when putting on the rocker arms. When they start pressing against the cam lobe and therefore against the valve spring, there can be alot of pressure. It will want to cock, or tilt the rocker arm to one side and can pull the bolt out, stripping the threads.
The head and intake are rather heavy. I used a come-along held overhead by a 2x10 spanning the garage trusses the width of the garage.
'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)