Re: Seller agreed to offer, but set a clause,"no discounts after survey"
The Seller's caveat is kind of meaningless other than putting you on notice that he/she doesn't intend to reduce the price further if you do not accept the Survey/Sea Trial "as is". In fact, however, if a major flaw is discovered (unlikely given your description of the yacht), it is something he/she will have to correct or, if not, disclose to the next prospective buyer who will certainly adjust their price accordingly. Considering carrying costs alone, a negotiated price adjustment with you, if reasonable, is more sensible. On the other hand, it is not uncommon to find things that do need correction/repair during a routine survey of a good boat--out of date Fire Extinguishers, Flares and the like, battery cable covers, battery tie-downs etc.--that are not material and really have little/no effect on the value of the yacht but may involve some costs to "correct". The unfortunate fact is that there is always something that needs correction on every boat, bar none. It is the nature of the beast. Further, get behind the idea that you will likely spend 10% to 20% of the purchase price of the yacht for upgrades/repairs in the first year of so of your ownership of the yacht.
"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."