1 Year ago I paid $6600 for a '94 LS with 89k. A GSR usually commands about $1000 more than a similarly equipped LS. So if you wait and look, you could probably find a decent '94 to '95 GSR for around $7000, or a little more.
And If you didn't know, the LS has 140hp, while the GSR has 170. If you can find a good deal on a GSR, it's worth the premium. :thumbup: There are no performance differences between an RS and an LS, the LS just has some added features like power locks/mirrors.
Also, the timing belt on an Integra needs to be changed every 75k-90k miles. If it hasn't been changed recently, it'll run you around $400 to fix, so keep that in mind. That seems to be the only part on an Integra that regularly goes bad. If you have any other specific questions, ask away!