Pär Sandin, Aeschylus’Supplices: Introduction and Commentary on vv. 1-523, is available for purchase (corrected edition, Lund 2005, ISBN 9162864017). A preview is available at Google Books.
Prices include shipping:
380 Norska Kronor within Norway (payment by bank transfer only)
49 Euro to the rest of the world
Unfortunately only payment by bank transfer can be accepted at present.
Norway, account nr. 65011365889