If you have a look at the following thread:
You can visually see that the drives are different. The Hitachi drive has its connector along the side, whereas the Toshiba has its connector on the end.
The drives use different connectors, rails and sheeting materials. There have been a number of posts on the forum regarding swapping one for the other, including the different part numbers needed to make this work.
What you propose can be done, but it’s a matter of more than just sourcing the replacement drive. There are a number of other parts to secure in advance of making this work.
I wasn’t sure what you were after from your original post.
Jef