CISCO PIX Firewall changes for asterisk installation

I am in need of expert services on Cisco Pix 501 firewall. I am planning to install an Asterisk IP-PBX. I have multiple Public IP's available, they need to be configured to make Astersik accessble over one of such IP. The Asterisk IP will have to have the following ports open. This is critical. Port #'s 22, 80, 443, 5060-5085, 10000 to 20000. Note: It is very important to verify if pix will permit opening of such a large number of ports. Other ip's need minor changes in internal IP address assignment. All IP's will require web accessibility. After CISCO PIX reconfig, the changes will be tested by Asterisk consultant to ensure accessibility works for Asterisk application. Additional one or more change(s) may become necessary during or after Asterisk testing. Send us your bids and keep bid low. Ask any questions.