HELP with autofs and NIS: How to override mount options on all mount points?

I have a Linux box that's trying to use autofs to mount a sizable
number of mount points from a Solaris server. I'm doing this over a
VPN, so the default mount options cause NFS to hang up hard the instant
I try to work with files over a certain size. The solution is to
change the mount options, and I have figured out what those options
are.

I have an empty /etc/auto.master file, because I want to rely entirely
on the server for which mount points exist. It all works fine in terms
of automatically mounting, but the mount options are wrong.
Every search I have done on autofs, auto.master, etc. all talk about
how to manually set up mount points, which somewhat defeats the purpose
of using autofs, so I'm a bit confused.

In any event, what I would like to know is how I can override the mount
options for all mount points mounted by autofs. Is there a single
place, such as auto.master, where I can globally specify an override
set of options to apply to all autofs mounts?


Thanks.