The centre heights aren't far apart for the two lathes, Ideally you would want to know the height of the top of the cross slide for each. The difference between centre height and cross slide height will give you nominal tool heights for the top slides.

Looking on Tony's ML 10 page

http://www.lathes.co.uk/myfordml10/

You can see the square headed clamp screw either side of the cross slide which tell you that the ML 10 top slide is similar to the Super 7 and not the ML 7 which used vertical bolts to clamp the top slide down –

http://www.lathes.co.uk/myford/page2.html

Hope This Helps

My experience with the Super 7 is that for best tool rigidity you lock all the gib screws on the topslide and feed with the leadscrew. I'm in the process of making a new fixed base for the Dickson toolpost for this reason. The only benefit of a topslide is for making short tapers and for angle offsetting for screwcutting IMHO. Now I use CNC on the lathe it has no function except reducing rigidity.