Should i buy a mustang with broken gasket?
you should be able to find a mustang from that time period with less than 100,000miles for 2000-2500.00
if you can do the work, and have the tools, you could change the head gaskets over a weekend, as long as the heads are off , you should get the valves done, and seals replaced this should cost 500.00 with you doing assembly and disassembly...
if you have someone else do all the work... they will charge between 1000-2000.00
so this car would cost you 2500-4000.00
look for a better car.....