Oh how little you know, I have owned it since it was new, no issues with HG, just two burnt valves, but nothing since installing the headers almost 100k ago.
HG's aren't an issue if they are repaired correctly. 
so it's a good engine after around 1k in upgrades? cool.
the only 3.0 i had blew the head gasket after 2 weeks of owning it. to be fair though it had 25k miles on a rebuild done by a crappy shop. once fixed with toyota gaskets I had no trouble.
