Got the email today that my kit from CK is shipped. Have a local shop highly recommend that is charging labor and letting me bring parts (will still warranty the build). I have a couple questions before I get elbows deep in the swap. 1) I saw a thread about using a th400 cross member. This is appealing due to cost vs BTO and because I've heard BTO can interfere with dual exhaust. Is there a specific year I need to look for on an 81? Is it worth trying to pull one or is Sunmit or Jegs my best bet? 2) Can I just tell my builder my gears and tire size and he'll put in the appropriate speedo gear? 3) A used mega shifter and a new shift works conversion cost about the same. Which is better? 4) I am planning on using a lockup converter. I only want it to come on in OD, which lock up kit should I get? 5) Am I forgetting anything beyond cross member, TV conversion, and shifter conversion? 6) Will WOT shifts from 3-4 kill my trans?