Any Starcraft dealer can order them for you. The handles are standard - they don't come without them.
Unusual to find them on CL or EB, unless someone was parting out a boat. Not likely since SeaFarers last almost forever.
Then why are transom endcaps so hard to come by for all the other SC's like Jupiters, Jets, SS's & etc?
This is the 2nd time someone has suggested an SC dealer for parts recently, but there are LOTS of year or 2, even 5 or 6 year old Topics & requests asking about where to find parts that don't have resolution. Everytime it's suggested to contact a dealer, a dealer may be contacted but they are never helpful or a resource for parts.
IF you KNOW there's a dealer that will order parts and pieces for SC's, I'm sure there are numerous fellas over in the SC forum that would love to have their contact info. Esp rubrail and endcaps, which as standard items across multiple models and decades of years w/ no changes, you'd think they'd be the most likely to be available parts. As far as I know there's only been one occasion that a dealer actually ended up coming thru on parts, rubrail, and DJ basically lucked out and should have paid a great deal more then he was quoted, nearly 3times as much....
BTW, CL & evil-bay are the only 2 places I HAVE seen them for sale.
DJ's official Starcraft rubrail topic
Perhaps SC took notice of the bad PR & the general PITA/lack of customer service at most dealers and made some changes to their customer service