I don't think anything is a bolt on swap. I know a non-US member swapped the front end and it seemed straight forward but I don't think it was bolt on. I can't recall.
I want to swap to Euro R fog lights at some point. They are just so expensive and thought they look good on a 01-02 coupe, they don't look totally perfect either, what's kind of holding me back. They have just a slightly different angle. If they were perfect, I would likely shell out the the cash for them.
As someone said, the front end looks a bit small on our cars. It is a smaller car. I do wish someone made a front end based on the Euro R. It wouldn't even be that hard, basically make fogs that fit the 01-02 bumper, put a 98-99 sized removable grill (the 01-02 is too big to get rid of the bars IMO), and add a front lip that fits. It would flow well with the OEM lip kits from our car, IMO, to not need different sides or rear lip.