Will see what I can do, I'm going down to Florida for a Nautique get together/ cruise to Silver Glen on the 22nd but will see how my schedule plays out after that. We're on the water almost daily, been great weather down here since the middle of April.
Just posted yesterday, I found another 20' I/O for sale on CL... https://fortwayne.craigslist.org/boa/d/hydrodyne-boat/6225640713.html Its in rough shape but he's only asking $600.
And now we know of 5 still alive but this one looks to be on life support. Condition noted as good in ad ? Looks like it's been outside a long time so not much chance of wood being in good condition. May could get your money out of the trailer with a little paint and grease.
This looks likes IsaacWiede's boat posted on this thread on page 5, about half way down. I think its an 18' I don't know how many of these were ever built but I can't imagine many remain...