You do need to get outside advice. In your two posts you ahve said the losses are susoended due to basis and they are due to an NOL.

If the sale of the boat generates business income, 1231 gain and ordinary inome recapture, it increases basis and allows suspended loses to be used,

I question the wisdom of creating $400K ordinary income out an otherwise low(er) taxed 1231 gain. Also.who is doing the selling/noncompeteing? S Corp or shareholder?