I'm not even sure you need a paypal acct to pay through it anymore...I donated $10 to my favorite tf2 server for a reserved slot through paypal without an account and it worked, maybe the same'll go for Keyclone...if so I might just upgrade to keyclone soon ;p

But yeah, if you have the patience or a little coding knowledge/common sense AHK is perfectly fine, it's basically a manually-coded Whitelist for hotkey passing without the frills or awesome support of keyclone.