The k-frame spacers don't look to be that thick from online pictures (1/4"?). You can only go so far with those before the t-bar socket alignment and other stuff gets wonky.
A buddy bought an original hemicuda that was a racecar since day one, that is what it had, and a bent down the center shaker, so it all fit. Not all were that thick, just saying it could be done... 450 miles or so on that car.
