IP Address changer for posting Adds on Craiglist

I have 15 PVA accounts and want to put adds in the craiglist service section . I want to have an ip address changer so that i can have atleast 15 USA IP addresses to post adds using 15 PVAs.I had earlier used iprental but now they are having problem with paypal payment. Kindly bid only if you have knowledge of postings adds on craiglist [login to view URL] should be ensured that using these IPs if we post adds on craiglist , the accounts are not put on hold. An experienced craiglist poster can really be helpful in this project. This is a sample project and if the adds are put successfully , I will be regularly needing Craiglist accounts and ip address changer.