I found a site that may be able to help you. Check the link below.
Perkins School for the Blind
They sell or hire DVS & have Star Wars listed as available.
DV000033
STAR WARS - 1977 PG 124 min
Princess Leia (Carrie Fisher) is held hostage by the evil Imperial forces in their effort to take over the galactic Empire. Venturesome Luke Skywalker (Mark Hamill) and dashing Captain Han Solo (Harrison Ford) team together with the lovable robot R2-D2 and C-3PO, to rescue the beautiful princess and restore justice in the Empire. Also stars Peter Cushing and Alec Guinness. Directed by George Lukas.
Good luck. Please keep us informed of your progress.