If a board comes with a block and you remove it then you would need to replace it with heatsinks and perhaps add a fan. Look at similar air cooled boards for an example.
The best place to find an old board is going to be ebay. You might have similar regional auction/classified sites which you could also check.
A bus station is where a bus stops. A train station is where a train stops. On my desk, I have a work station…