I have a WC T5 from a V8 Fox Mustang for sale.  I will rebuild/build it to suit.  I can rebuild it stock or can modify it for increased power handling and different gear ratios.  I've built several dozen T5s over the years.  Personally, I would prefer a built T5 over a Tremec because they shift so much better.  The Tremecs use an outdated synchro design that cannot adequately slow the speed gears during shifts resulting in slow, notchy shifting, whereas the T5 uses a carbon lined, multi piece synchro design that was eventually used on the T56 because it works so well.  With the right parts a T5 can be just as strong as a Tremec, but retains its better synchro design and is easier to install because it allows you to use a stock Mustang bellhousing, etc.  If you are interested send me a PM and we can discuss options.

-TKOPerformance