Please refer the attached image taken from the module datasheet. It contains the minimum clearance area required for the antenna.
Also, please refer section 12 from Antenna Design and RF Layout Guidelines application note from link below:
Also, you can see the following image from the same application note
Hope the above information helps you to decide the proper placement.
We strictly recommend you to place the components in place and test the range before going for prototype.
Thank you so much