Ok, you really want colored spokes?
Yes, broken teeth require replacing the whole freewheel but first, thought i'm not a pro wrench I've never seen a tooth break on a steel freewheel, and second, the whole freewheel new made by Shimano is about $20, at least now. Road riding rarely results in impacts to the freewheel teeth.
The bike itself is not "worth nothing." I don't know what it is worth, but decent bikes or frames that work, are in good visual condition, and are complete can be sold. I doubt it's a sought-after collectible, but I don't really know. But a good working bike can be sold.
Have fun!