Hey NJ. I'm not sure what counts as DIY in your book but I would recommend an automated system with spot spitters or similar emitters if you want to be sure they're being watered properly. A little more low-tech: attach a sprinkler to a timer (available at your local BB store) and place all the plants so they'll receive water. Be sure to test it out in advance to determine what's the right amount of time. Option 1 would be preferable since it supplies the water without wetting the foliage.