Help needed about integrated fridge freezers

We need to replace our built in f/f.

The fridge door is 1010 mm high, the freezer door 620 high.

The freezer unit door is 715mm high and the fridge unit door 1245 high.

The question is, are all 70:30 f/f dimensions the same?

If I buy any f/f of the same height will the unit doors fit the doors of the f/f without spoiling the look

All websites give the overall dimensions of the f/fs they sell( HxWxD) but not the height of the doors.

Anyone had this problem???