i found these two bikes by the dumpster- Dahon Boardwalk folding bikes. They are totally rusted by the salty air (it's a humid salty beach climate). The chain is rusted and when I push the pedal, the wheel does not move. The seat post is rusted. And the folding mechanisms are rusted.
I'd want them for a simple ride, 10mins into town and back- so might be worth it to fix. They don't have to be perfectly restored. What are the main things to evaluate before refurbishing a bike?
I'm willing to put down $150 on parts. I have basic tools and plenty of time.