Yes, the 2 parts are very similar to each other.
Instead there is a greater diversity between the 6014b and 6014 currently present: the form of the attack of the pin (see the images in http://www.bricklink.com/catalogItem.asp?P=6014b) and also there is a slot on the side (see the big picture in http://www.bricklink.com/catalogItem.asp?P=6014a showing the lateral part of the a-version equal to that of the version b)
Even for the 60032 there is a diversity towards the 2377 such that the glass to be used in the two parts are different from each other (http://www.bricklink.com/catalogItem.asp?P=60032)
For the 30625 and 58088 I don't know a similar part to use
Instead there is a greater diversity between the 6014b and 6014 currently present: the form of the attack of the pin (see the images in http://www.bricklink.com/catalogItem.asp?P=6014b) and also there is a slot on the side (see the big picture in http://www.bricklink.com/catalogItem.asp?P=6014a showing the lateral part of the a-version equal to that of the version b)
Even for the 60032 there is a diversity towards the 2377 such that the glass to be used in the two parts are different from each other (http://www.bricklink.com/catalogItem.asp?P=60032)
For the 30625 and 58088 I don't know a similar part to use