It would be helpful to know why you are looking for repeater space....is this for public safety use (doubt it) or some other reason? Giving us a little more info to go on will probably get you more of a quality answer.
Marshall KE4ZNR
I agree with yardbird.
South Sales is the big dog in the area for rental comms.
You can also try Two-Way Radio of Charlotte.
Also check Racing Electronics.
They have portable repeaters that they use at some of the larger tracks.
And now that the original poster has been given some options I will close this. Any further discussions about this please handle via email/PM.
Thanks and Happy Holidays!
Marshall KE4ZNR