Gb-not sure my coords..don't have a portal (though I used to?)I will however donate gold,glass,redstone. And also I can repay the obsidian. Lemme know where you want the stuff and I will drop it this afternoon.
The water source must be either one block below the dirt block the crop sits on or at the level of the crop. So no (yours would be 2 blocks down - so it isn't possible to water a crop from underneath). I wouldn't worry about surface area. This is the most efficient way to water your crops, with regards to surface area (water irrigates up to 4 blocks away):
The Nether Express™ is up and running from the town portal to my portal (thanks to Peacashew for donating some glass!). Josh, I dug a tunnel to your portal and started the track on it - you just gotta throw down enough booster tracks to get it up that hill and you'll be fine. The track stops at my portal on the way from town, and you can just press the button you stop at to get going towards your portal.
Who else has portals they want hooked up? jd, did you ever build one? gypsie, where's yours at? akspartan?