Man, that's a lot...
That's a lot of sugar!
Or will you be mashing? That's alot of mash and lauter tun and a heck of a lot of grain!
That's a lot of fermenter / wash-back too.
Seems like a lot of hobby, got a lot of time?
If you do and it is a lot of 'by-the-book' hobby, you may want to check in here as well:
http://adiforums.com/index.php?act=idx" onclick="window.open(this.href);return false;" rel="nofollow
A lot of 'by-the-book' commercial distilling enthusiasts seem to be doing a lot of posting here about similar quantities.
Maybe though, you just saw the Colonel's 220 Gallon Double Diamond Copper Still, heard the sound track and had tortured pipe dreams for a few days thereafter like I did:
http://www.coppermoonshinestills.com/id51.html" onclick="window.open(this.href);return false;" rel="nofollow
Best of luck and stay clean......