Mounting an ext3 filesystem with user privileges

I'm trying to mount an ext3 file system from another Linux installation so that the user, not root, will have full access to all the files. (I really do need user to have access to those files, because I would like to use them from another computer via sshfs, and sshfs will only give the user's access rights to the files.) If I run mount /dev/sda1 /mnt/whatever all files are only accessible by root. I've also tried mount -o nosuid,uid=1000,gid=1000 /dev/sda1 /mnt/whatever as instructed by a SuperUser question discussing ext4 but that fails with an error, and dmesg reports: EXT3-fs: Unrecognized mount option "uid=1000" or missing value How can I mount the filesystem?