I obviously differ in my opinion compared to xdcammer's, but I maintain that this is not merely a case of a few misunderstandings; that dealer has screwed you over without question, and has failed to meet the terms of sale in many areas:-
0. No rudder pins
1. Two sets of mirage pedals, but one is a standard set.
2. Two seats, but one of the seats is a non pegged older version, look like the paddle version.
3. No cassette plugs
4. No buckets
5. Sail is missing the two smaller battens, and all three of the caps.
6. Missing a bow/stern handles (2)
7. The mast bearing plate looks shot, only 3 bearings in it. Is there supposed to be a cover below this plate on the Ti? It's wide open. On the AI it's covered.
8. The Aka bag with the aka extensions was totally corroded shut. Looks like nobody had opened it for awhile. I couldn't get it to unzip even after trying corrosion X. Had to slice the bag open with a utility knife.
9. This is the big one, it's an early 2013 (serial number ends in L213) I take it the 2 is for the second month of production for the production year 2013. Warranty?? It's over 2 years old.
Of course this is not Hobie's fault, but 100% the dealers.
To me the question is simple, Would the dealer have provided the used boat in that condition if you were taking delivery face to face? I think the answer is obvious, and why you should not just "bend over and take it"
OK, so maybe my suggestion of your receiving a brand new 2015 model is over the top, but that dealer owes you big time to fully compensate for each of the above shortcomings, (less those noted in writing in the sales paperwork). Misleading you on the hull age is particularly unacceptable, even if Hobie's general warranty behaviour of generous. In your case, I would be insisting on getting written confirmation from Hobie that you have a remaining warranty period of a 2014 hull if that hull model is specified in the sales document.
Good luck receiving proper treatment from the dealer so your TI ownership enjoyment is soon up where it should be!