Great find. For starters: Do the work yourself. That alone will make many projects worthwhile regardless of monetary outlay.
Cables & housing are cheap & a given when it comes to these things. It'll be $30 well spent. I like stainless steel cables & compressionless brake housing. But galvanized cables & coil brake housing works well & costs less.
Derailleurs usually are not worn so bad that they are a problem that can not be corrected.
The spoke situation can be addressed by a competent mechanic. I wouldn't hesitate to bring a wheel to a shop for a tune & true. File this to the "basic maintenance" catagory of expenses. For one it help build a relationship with a shop & for 2 not many people have the right length of spoke & a truing stand on hand. For 3, it can help address any lingering tension/fatigue issues. With 2 broken spokes already, it sounds like the may be some that need addressing.
Good find & good luck. They are very reputable bikes.
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I shouldn't have to "make myself more visible;" Drivers should just stop running people over.
Car dependency is a tax.