I do believe I've found it. It is now this site:

http://www.tc.umn.edu/~sorem002/hymn_midi.html

It does have Lord, you have come to the seashore, in fact, it has it twice. It is a link mentioned by Joe above - that's how I found it. Don't ask me why the MIDI search engine and Google don't bring it up.

Joe, you might consider this site as a source for your tenor and bass parts. I listened to the mIDI of "One bread, one body" and I can hear the alto part in it. Perhaps the other parts are in these MIDI's too.

A site like this save so much time. For example, we like the song "I am the Bread of Life," but the original was too high. So I download the MIDI into Noteworthy, change the key, type the lyrics and ta da!