Hey Jeff-
Welcome to the 30 class! I hope we can entice you to do some one design racing when you are ready (and I hope you will come try some of the regattas at Raritan YC-we have several active/semi active J/30's, and a bunch of other well sailed 30 footers).
On the hatches-does your boat still have the black plastic "Bowmar" units? If you are going to rebed, I would encourage you to consider upgrading to some new Lewmar units-rebedding is time consuming, and the Bomar units are not particularly great.
The floor stains are not so easy-I would recommend a thorough sanding of the floor, and then a cleaning using a strong two part teak cleaner, then a finish sanding before varnishing. One strong warning-if your boat is leaky, you may have water saturating the vermiculite under the floor at the aft end of the cabin. In winter, that moisture gets into the teak, and can freeze and "blow" the varnish off the wood. Wait to finish the floor in the spring after the freeze thaw cycles end, and use a "sanding sealer" as your base coat-it is much thinner and penetrates into the wood better for a stronger bond. Also-after several years wrestling with failed varnish, I took two further steps. I drilled holes into the vermiculite horizontally at the rear of the removable floor section to allow better drainage and drying, and I dehumidify the boat for a week or two after haul out.
