Most "old" bikes have two values: "riding around" value, and "obsessive collector value". If the bike is "like new", and has 100% of the original components, placing it on E-Bay might turn up a collector who has been hunting for this precise bike. And, if it is identical in every respect to the actual bike Kelly used himself, it is likely a high quality bike that in "mint" condition could sell for $500 to $800 or so with a first rate E-Bay ad..

But, if not "original" and in "mint' condition, it becomes less interesting to collectors. And, its "riding around value" is likely to be only $150 to $250.

Have you considered putting on an extra-tall Nitto stem and riding it yourself? Although I prefer a size 60 bike, a size 56 fits reasonably well with the stem up a couple of inches. Twenty years from now, YOU may better appreciate the virtues of owning this unique bike.