I say go with the bowtie overdrives.. I got the stage 2 and its awesome.
the 2200 stall heavy duty T.C. was only $150 from them too.
I recently broke the advance adapters output shaft on this trans
(pics) and they are going to replace it while I wait and take care of the warranty work dealing with AA themselves.
I could have gotten a cheaper trans but if you go thru the entire experience with bowtie overdrives, you will see why they are better.. Then again its your money
mike