The ONLY person that would pay anywhere near the asked $1500 would not only have to be a dedicated rocketry hobbyist, but also one that this particular item holds particular sentimental value as well. Rarity often does not determine VALUE.
Being rare often does increase value, but there also needs to be an actual want for the item in question for it to have marketable value, rare or not.

While the audience on ebay is HUGE, the correct audience for specialized items such as this is actually lousy.

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When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, and HAVOC !