Was not sure of your exact location on the Sound. I have been in several partnerships that have worked out quite well, and currently share a whitewater raft, drift boat, and whitewater pontoon in Montana, but have got the sailing bug again. For expensive items that one uses infrequently it certainly makes economic sense. I can walk to the marinas in Lake Union or am a quick bike ride to Shilsole, so yes, I would prefer local access. There seems to be more racing action up that way.
The Farr 1020 needs a lot of expensive work. I looked into bringing it to San Francisco (5K) and having some rigging work done at Swenson's (paint mast, 10K) and sailing the singlehanded society races there. I thought it would be nice to add a sprit, Facnor furling assymetricals, vane, new autopilot (the one it has is a very old tiller pilot), new SSB, satphone, etc, etc, and as with most of these old boat fix-ups, would have a 100+K boat worth about 50K on the market. I was very surprised that the current owner, knowing I was flying in, did not get down there and spiff everything up. He was even there when I looked at the boat, and did not seem too apologetic. There was crap all over the place inside, the galley drawers were filled with garbage, there was water damage in various places (?source), and while it does have engine driven refridge, it only holds a six pack and a sandwich. The owner told me that they stored the food in a large cooler in the salon during the 2006 Hawaii race, with a crew of 5.
The J35c interior is much friendlier, and very clean for age, but I would not make much of the solar panels, as they would be shaded by the main most of the time. It does not take much of a shadow to reduce their effeciency. The 35C in Rochester NY does not look as clean inside. I had the broker take detailed photos that reveal several cracked portlights, and staining, etc. I can't just run out to Rochester to have a look; it would cost 1000 to do so, and the complexities of transport, survey, etc, all done remotely offset any savings.
I have been working with a buyers broker in Seattle who looks after my interests, and I have paid him an hourly rate of 65. when he does a project, such as the Express 37 review. He did not sugarcoat the potential costs. It was money well-spent for me, when time is money. There is another 37 for sale back east. It is totally trashed, but could be had in the mid 20's, according to the broker. He said he thought it had "pimples" rather than blisters, whatever that means.
I was going to look at the J109 in Seattle, but the broker told me it was "a mess" cosmetically, so I did not bother, at 180K. There are a lot of nice boats one can find for 180K.
On another note, one can access both a J109 and 35c through Seattle sailing club, and this would probably be the best option for an intermittent sailor such as me. If you have not tried the boats it is also a place to test drive them without any pressure to buy, etc.