The Wookiee
Back From The Dead
I would park at the NCP very near to Haywards Heath Station (£2.50 on a Saturday) and get the train via Lewes or park at either near where I stayed overnight or even near St Peters Church or at B & Q at the old Preston Barracks, I think it is a 3 hour parking limit but a private car park so unenforceable, and get back into Brighton and out again.
I have parked at Claire Hall in h Heath before, although it was rammed the other week due to some Xmas thing. Also down by the fire station on street is ok, says 4 hour limit between 9 and 6 I think, so get there around 1pm and should be ok. Have never seen a warden down that part of town ever !