SUexec problems

Hi. I'm wanting to use SUexec with a handler for a specific filetype with
multiple users on the system.

I want to handle, say .abc files, with the handler at
/home/shared/abchandler.cgi. That CGI is owned by 'nobody' and is intended
to be executable and readable by all users on the system, and is chmodded
755.

As far as I can tell from http://httpd.apache.org/docs/2.0/suexec.html,
SUexec will not allow this, because it requires the CGI to be *owned* by the
target user, just just executable.

Why is this the case? It seems totally unnecessary to me.

How can I disable this requirement?

If I can't, is there any other way I can do what I want to be able to?

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Best regards,
Jeremy Morton (Jez)