I am also moving towards the Park. Mostly for jumps and boxes - no rails for me. And even more ground tricks such as buttering.
My selection ended up with Salomon Drift Rocker 148 with Salomon Rhythm. I chose a much shorter board for the park - just to make it easy to turn and spinn.
I'm built similar to you.
But, I havn't tried it yet. First run next weekend.
-- Better to have tried and failed and not tried at all --