If your plums are completely dry, leave them in some water for 15-20 minutes to soften, deseed them and then start.
Measure your phyllo sheets against the pan in which you'll be baking the pie. You may have to cut phyllo a little to adjust the size.
Check that you have espresso size cups before starting.
You can warm up before serving. Otherwise you can serve cold. Ice-cream is optional. :)