Biggest challenge here in terms of protecting your investment is the potential different interpretations of "nice". TS is definitely top 2 of all the pins I have and probably the least "valuable" Agree with the comment that it won't be remade and a "nice" example is not likely going to drop below $3,500. May want to post pics if you are concerned.
Edit: I'm sitting here shaking my head that I paid like $5K for a Family Guy and a nice Shadow can be had for $3,500. Wow. Funny how games get valued I guess.