Honda Civic with problems

Worst first car buying experience ever. Didn't get it checked or anything first.

97 Honda Civic EX
I've now found out it has a blown head gasket and the transmission doesn't automatically shift. It works if i drive as manual but obviously means it needs replacing. I bought for $900 and can't fix both problems cause I've only got $500 to spend. What should i do?
Fix head gasket and try to sell? Is there places that scrap for more than $200? Any advice is appreciated

Read more: Honda Civic with problems