if i were you i would rebuild your motor... at least then you know the history and know it's gonna be a minta... you could get a jdm swap and find that someone has ran it out of oil or who knows what else
the twin cams aren't difficult to rebuild any more than a single cam... i really don't see them being difficult lol... maybe you should ask on that group why they think it's hard with two cams :P
good luck with the motor