For a cruiser with OD you want a converter that stalls slightly below your cruise rpm at highway speeds. Assuming a .67 OD, 3.42 gear and 26" tall tire your cruise rpm at 65 mph will be 1926 rpm. In reality it will probably be slightly higher due to converter inefficiency (slip). IMO in a car intended for mostly street use you would want more rear gear to run a 3000 rpm stall converter unless you don't mind a whole bunch of slip (heat) at cruise.
What ever converter you choose make sure you run a good tranny cooler.