Well first thats a 93 not a 94. Im not sure what the gun is worth but if you are getting the sled for $3-400 and you have to put a few bucks in it Id say its worth it.Id check compression,track condition,look at the exhaust pipes where they come off of the motor. They like to crack in that spot.
I had a 92 I put abot 10,000 miles on and it ran great. They ride ok for the time they were made. I wouldn't look to keep up with a new sled on a bumpy trail. You will need Back SURGERY!!!!!