4l60e transplants?

I was aware of the bellhousing from quicktime. I actually wanted to run the Keisler kit but they don't have a perfect fit kit for the early a bodies, only the later a's. That means I would have to manufacture the actual transmission crossmember as well as modify the tunnel.. how extensively is what would determine whether or not I go that route, because I will be using a 1966 barracuda dash and the dash matches the console top plate perfectly with the argent silver, black stripe and the chrome outerlay. The tunnel's in these early a's are so small, I'm amazed anything fits.

Thanks,
Ryan