Dumpster Find

"Dumpster Find" That's always a phrase which always engenders envy on my part. Living in Denver, where people seem to be pretty hip to the fact that old bikes are sellable, I find that most people don't put them out on the curb, or in the rubbish bin. Usually, they end up on Craigslist, with a "vintage bike" tag (and price).
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Recently, however, I came upon this in the trash (clicky for BIG):

It's a 1981 Schwinn Cruiser 5. Unfortunately, the chainguard is missing in action.

But it does have a rear drum brake!

Now, the only question is, "What do I do with it?"
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Should I just replace the front tube, clean and adjust it, then sell it on? Pretty much anything I get for it will be profit (minus my time and a tube).

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Or, and this is my weakness, do I lace on some alloy rims (using the front drum-brake hub I have out in the shop), install one of these, and a better derailleur/shifter? Then, I would have a very useable bike, but one which would probably be impossible to sell at a profit.

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But it would be so cool!

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Addictions are never pretty...

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