any help would be appreciated.
Help: There are people here that would either give you excellent DVD's of the original trilogy for free, or else charge you very little for them. There are many different ones to choose from, all with different options, like: anamorphic widescreen, isolated score, recreation of original crawl, 1993 or 1986 version of sound mix, PCM or Dolby...there's lots to choose from.
But getting this stuff on Ebay is dangerous: you don't know what you're getting, and you're probably paying more than you have to.