Yes, I can make my version of the enclosurecache plugin available.
It had some very ugly SQL-code snippets, that needed to be fixed so Sqlite would accept them too. It seems MySQL isnt that finicky when it comes to that. 😉
Just make sure you have proper permissions for the web-server-user.
The enclosurecach plugin is recursive. It is called from the webbrowser when updating, and then invokes itself through command-line-php, as a detached command. It may not be nice, but it works. 😉