30" scale will work. You may need to undo some of the winding on the tuner end of the string. I used a set of 30" strings on a Strat bass I set up. I unwound the top layer of the E and A strings so that they would fit in the Strat tuners. Unwind only the amount needed and snip it off. I used heat shrink tubing to secure the windings.
How is this working out for you? Any string buzz or loss of tone?