No reason why you can't do the pressing yourself. If you have a wool kilt, dampen a press cloth (an old pillowcase works great), and lay it on the kilt. Press with a steam iron. PRESS, don't slide the iron. Keep re-dampening the press cloth, and press both sides of the kilt. Let it dry before taking out the basting.

For PV, just be sure not to have the iron too hot, or you'll melt the fabric.

I don't have any experience with starching poly blends. Sorry!