Ross, if you really like the Precision 28 or the older Precision 27, then you would find a Starwind 27 to be what you are looking for. Jim Taylor designed these models that were built by Wellcraft in the mid-1980's. The Precisions which are also designed by Jim Taylor and built later are basically the same mold, except that I believe the Precision features a fractional rig vs the masthead rig of the Starwind.
Ours is a shoal draft at 3'-7" draft which appears to be the most common variation. They typically come with a Yanmar 1GM diesel inboard and wheel steering. The hull form, displacement and keel for the Precisions are identical.
I think so highly of our boat that I completed a re-power this spring with a Yanmar 2YM15. However, the cockpit is not comfortable for 4 adults in my opinion. It is smallish, which tends to provide more room in the cabin. Headroom is just 6' ... when standing under the sliding roof. Otherwise, it basically provides decent headroom for my wife, but not me.
If you are familiar with the Precision 28, you know that this boat is designed more for performance than cabin comfort, and many boats are equipped for performance as well, with high quality rigging and hardware. She sails well in light air and is equipped to handle rougher weather as well ... at least as well as other boats in that size with a fin keel and spade rudder.
I see that there may be one in Tennessee for sale. There was one in Rochester a few years back. They may be harder to find in your area than a Precision. Most were found in Florida and Texas. In fact, mine came from Texas originally. I'd like to hear the story about how it landed in NJ, but I may never find out.
I'm curious about the sailing on your lake. Does it have access to the Hudson River? Being as large and wide as it is, I imagine the sailing can be quite good, with great scenery as well. I'm surprised that you mention that the depth is an issue. Are there areas of the lake that are particularly shallow? Perhaps it is the depth at the access points that have you concerned. Our lake basically has deep water everywhere we sail and our dock is in 6' to 10' of water, but there is only one marina on our lake that is equipped to lift our boat out and the spot they have to work with has a limited depth to the point that a deep keel on my boat could be a problem.
http://www.salecreekmarina.com/starwind_27.htm