Have to admit that your post forced me to do what I should have done earlier. When in doubt, Google it. Found the one that I wanted. Have not pulled the trigger on the order quite yet but soon. Has angle, tilt and offset features. Precisely what the doctor (so to speak) ordered.
Ain't got all this figured out on inserting a picture so that is the page where I found the blade. If you look at the rear of the blade, you will notice the slide feature and the slots also to allow for tilt. Looks like a winner to me.