Design of a product in VR

General information for the business: We sell Home boilers
Description of requirements/functionality: The job description is as following :

We have to basic parts, What we call “C-frame” and “Gas valve”. We want that initially these parts are apart on a table in the room and we want to move the gas valve in the right place inside the C- frame. When the gas valve come near to the place where it gets fits in the C-frame that area should get highlighted in the C-frame so that the user gets an idea that he is going in the correct path.
The sequence of action would be:
1. The c-frame and gas valve are on the table.

3. The sequence should be correct. The gas valve should not get hung first by any chance. It should be the c-frame that goes first and then the gas valve inside it.
4. If any of the users first put the gas valve on the wall it should just fall.
(One question can you add sound to the whole thing like a clicking sound when c-frame gets hung on the wall or the gas valve fits into the c-frame) Also a fall sound when any of the thing falls on the wall)

The time scale is really important for this project as we are pushing for time here. If you could finish this in one or two days then the further scope of the work is there I will give you an idea of this once we preview this work.
Extra notes: