Mk2 Ph1 1.2 ignition switch prob

[fakeConcern]

My daughter's Clio Mk2 Ph1 Clio has a problem with the ignition switch. The key does not return when turned to the starter position on it's own. I imagine the spring has broken. Is this likely & can it be repaired or should I look for a new lock set?
If I do go for a lock set, can I still use the remote central locking & the imobiliser?
Any help much apreciated.

 

[Hodgins]

As far as i know if you changed the lockset, you could swap the chip out of the current key and pop it in the replacement so you've only changed the physical blade and barrel so the chip will still communicate with the car