Bill,
I've owned a few 19s and have to agree with you they are a blast to sail! But if a spinnaker is what you now prefer, try an F18 with a righting pole for single handed sailing. There are a lot of boats out there that simply cannot carry your 2-up crew weight without over stressing the hulls. At 360 crew weight plus, the F18 will really scoot and the 2 of you will smile all day
!!! This is just my opinion from what you describe. There are a lot of pics from the recent NAF18 event.
Happy Holidays,
Bob