Water woes...we all have them. If you plan on leaving in 3 years, that will go fast. I'd do what I could for now and look forward to what I can do in the next place. The cost of having someone else do the drip installation would outweigh your water cost savings most likely, no? Do you mean that you currently have the blueberries in half barrels and plan to move them? Mine are in half barrels also and I have a lot of other stuff in half barrels, can't imagine trying to move them...it will be difficult enough with the trees I have in 15 gal pots...lol..
