Avoid the Navion at this stage in your flying career, not that it's a bad plane, but it will consume more of your time and money than the others to do the same job, and will not be as predicable for operating costs.
Errrrhhhhhh......1600hrs TT 200 ME......flying regularly.......sounds about enough experience from where I'm sitting.....I know people with a lot less TT and (seemingly) a lot less sense who handle far more challenging a/c that have an equal amount if not more 'maintenance' challenges!
Oh the style, romance, character, nostalgia......bring on the Navion.