Has anyone come up with a simplified and cheaper way of operating the carb linkage.
I cannot see paying all that money for the trans bracket setup. Plus it seems like there
are to many adjustments that way. Any help would be appreciated.

Modify the throttle arm on the crossbar so the pull is forward rather than aft, then just use a 914 throttle cable. I've never seen this done, but it wouldn't be all that hard to do.

On my six conversion we use the four cylinder cable and made a small "L" shaped bracket that bolted to the rear of the block, where the tranny is mated. A hole was drilled for the outer cable to go through and line it up with the throttle arm. The cable pulls the throttle arm to the rear. Good luck

I have a similar aggangement to John, but I had a custom cable made with teflon coated inner cable. I could never get all the bell cranks and levers to work out probably because the po modified it all.

Here's a pict of mine. You can see the "L" bracket behind the fuel lines. The small cable is a bicycle inner and outer that goes to the heater lever and acts as a speed increaser when I start the engine of the race car.