Need to replace the rear brake shoes on my 1999 1.5 323F celebration. Any ideas/tips on how easy/hard they are to do please.

It's an easy job (if you've done brake shoe replacement before). It's a good idea to take a photo first so that you see where the springs etc. fit back.
Make sure the handbrake adjustment is slackened at the start of the job and then readjust after the brake shoe replacement.

Thanks, yes pretty mechanically minded so should not be a problem.

always do one wheel at a time, then you have the other side as a reference

Yes, would do thanks.