I have managed to get hold of a pair of chrome interior door handles out of an ST170 to fit my 1.6 Chic (which has the standard black ones)

I've had all my door cards off before to replace speakers etc.
Has anyone changed their interior handles and is it easy and straightforward or is it a pain in the arse job?

Just thought I'd ask before ploughing on to see if there is anything to watch out for or take extra care with before ploughing on with it

EDIT: I am refering to the interior lock handles...

Thanks in advance