I'm running SQUID 3.0.STABLE 24 on CentOS for 3 dedicated servers I have. Each server has about eight 2,000+ ips (8+ /24 blocks) and about 20 clients. I have each client give me their IP and I use that to authorize their access to the amount of proxies that they have paid for this way they can not share their proxies with others. Each server pushing about 20-50mb/s bandwidth 24/7/365.

Anyways, right now with Squid I have to setup config files for each customer such as

customer55.acl
Code:
#CUSTOMER: customer info 

acl customers_src src 55.23.55.121
acl customer55_src src 55.23.55.121

acl customer55_ips myip 55.55.37.0/24

acl customer55_max maxconn 150
customer55.deny
Code:
#CUSTOMER: 

http_access deny customer55_src !customer55_ips
http_access deny customer55_src customer55_max

My problem is that I want to start offering non-sequential proxies so for example if you buy 200 proxies them will be 200 random proxies from the available 2000 proxies on the server and not all from one /24 ip block. I'm not sure the best way to go about doing this, any help?

Willing to pay for your time!