well, your basically buying the washer......if the dryer doesn't work as it should, you should only consider it as scrap, not that you would....
but if they were offering the dryer alone, and basically not working, scrap value, that's it....
the fact that you could get it running is to your advantage, not theirs.....who knows whats involved with getting it fixed....
for that price, both should be working......I would start at 125 to 150...