I am moving into new house and need to decide whther to go with the builders option of a built in refrigerator 42 " kitchen aid for 8k+

or just get my own 36" refrigerator after I move in.

The opening of the refrigerator if I do not go with the builders built in fridge option will be 39" which means I can fit a 36" fridge.

any idea If I can go witha built in fridge after I move in if I dont go with the built in fridge option?

Does this mean the cabinets will need to be modified if I go with a built in fridge after I move in?