We too have a 95 320, I suspect I may have to work on this EGR assembly shortly, did you find it particularly difficult to detach the vacuum tube from the valve, it sure looks pretty rusty to me.
You might ask Phil on this site to see if any other items are required to complete the replacement, I'd be curious myself.
1995 MB E320 Wagon
2001 BMW 530i
2007 MINI Cooper S (!)