I do not have a sunshine, but an 85 Arcadia that is 30' long. I found an original owner, well kept up etc. The only problem I have had, along with other Jeanneau owners of 20'ish yr old boats, is the headliner foam is rotting, and is falling off the hull or cabin top. I am going to be able to fix my rig for about $750'ish myself, but got quotes in the $6-8K range for someone else. Look at this potential problem on the Jeanneau, and I have heard about the same problem with Benateaus in the same vintage, altho at this time, there were seperate companies, not under the same "Group Benateau" affilitation as today.
You can tell if it will be a racer version by where the mainsail track is at. If on the cabin, it will be a older SO version if you will, the main sail track is in the cockpit, it will be more setup as a racer, with typically a deeper keep, less wt in the keel/displacement etc. If you go to www.jeanneau-owners.com
, There is a link to ALL Jeanneau models general discriptions etc.
I would also add Tarten to your list. Altho a bit more cruiser-racer than Racer-cruiser if you ask me! Islander, Cal's and Ericksons would also make good rigs too.