Engine Mechanical problem
1997 Honda Civic Manual 110000 miles
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I have a 97 Honda Civic. I bought it in 2004 for $4000 when it had 100,000miles on it. Today, it still has only 110,000miles on it, and in these 4 years I have had to spend only about $200 on its maintenance, other than regular oil changes. I do not use the car much, have never really driven it outside a 10-15mile radius. And whenever I do drive I am extremely careful with it. The car was running perfectly until yesterday, when it started making a noise, as if there was something seriously wrong with it. The mechanic opened it up and said that the crankshaft seems to have suddenly broken, and I am lucky that I even made it till his shop. Now I have the options
A) Rebuild the entire lower part of the engine by buying a new crankshaft, bearings, and other parts – that would cost me about $2300 including tax and labor
B) Buy another used engine that he has located (this engine from LKQ already has about 70,000miles on it) and put that into my Civic for about $2500 total
If for the next few years, I am likely to have the same driving requirements that I have had for the last few years, then what are the pros/cons of the options (A and B above) and which is better?

If I were to instead just buy another used car would that be unnecessarily expensive for my needs? If not what range (mileage/cost) of used cars should I be looking at to buy?

If I get these same repairs done at a Honda dealer (rather than an independent shop), would it be worth the extra amount that dealers supposedly charge?

I am just thinking what would be the dollar value of my Civic today before repairs, and later after these suggested repairs? And since the car is already pretty old, what are the chances that I would have to do expensive repairs again in the upcoming weeks/months?

Any tips, suggestions about my current situation (or new options I haven’t thought of) will be greatly appreciated. Thanks in advance!