Don Martin made 30 of the 32's around 1979 - 1981 I think. I currently have 1 of them and it was built in 1980.
The first issue I had to deal with was the cockpit floor. The balsa core acted like a sponge for diesel fuel. It's wasn't a good idea to put the fuel filler in the middle of a flexible floor sealing it with silicon. I since moved the filler cap to under the rear bench seat in the cockpit. Protected from weather it's fine now. Lots of the balsa core in certain areas of 6the cabin top still need to be repaired from bow to stern. The hull itself is not balsa cored & I haven't had any issues that I can recall. I did raise the cabin seating which created much appreciated extra storage. Replaced the windows. The Volvo MD7A with the 110 saildrive is a great combination.
If you want any more info or photos let me know saracen2 at gmail dot com