As a CS36T owner I highly recommend the boat relative to all your decision points.
With a PHRF of 123, I beleive she is the fastest of the boats on your list except the J.
I quuestion whether the J and C&C are close to offshore boats.
As to sex appeal and down-below, that's in the eye of the beholder, but take a look a the CS and see what your eyes tell you.
As to offshore capabilities, the PO of my CS took the boat Boston-Bermuda as a shake-down cruise, following which he and his wife spent five years cruising the islands and Latin America, with numerous offshore trips from New England to points way south.
While you are generally wise to have a repair budget, don't assume there is anything magic about 20%. It all depends on how the PO maintains the boat, if the boat is starved in terms of the expensive repairs/refits for 10 years, 20% can esily become 50% or more. The opposite example might be my boat, where there is nothing left to refit or repair (including mast and all rigging) other then perhaps a new sail. See http://usedboats.com/index.php? site...&boatId=655232
for what can go into fully refitting an older boat, to the tune of over 100% of the purchase price.