you need new engine, samething happened to my friends honda accord. And the shop was saying that it will cost more money to fix it, since you have to rebuild it from ground up, your block, crank, rod, piston, heads, everything internal is fucked up.
sorry man, there is lot of gts engines for sale in many places, ebay, ecelica forum, and search for parts in general websites, And of course junk yard.
hope you find some engines. good luck bro