I have a large RL project to do, and so am putting my SL activities on hold for a while. As a result, I am renting out half my sim. The monthly rent is L$40k, or $150. You would have the full 7500 prim allowance. Please see here for more detials bit.ly/Sfa4NZ
I went to the trouble of submtting a support ticket about this - see here for LL's reply: http://blogs.secondlife.com/message/440725#440725 I personally am pretty annoyed about this issue - LL clearly couldn't care less, as is visible from their reply. grrr!