I don't know where you live... I'm guessing by the unfamiliar store names it's not Australia so I can't really help you out. Check the ingredients on packs? I use store-bought frozen pastry all the time. Even vegan pastry. I've got a giant pack of Borg's Puff Pastry in the freezer, it's vegan, alas it is also an Aussie brand. Quite a few brands do short crust, too, that's vegan. Look for the brands touting they are "healthier" and look for "cholesterol free" labels. There's a trend these days for replacing lard or butter with canola and the like in the name of health.
If you can't find an actual "pie crust" grab some pastry sheets and use them. They work quite well.
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