The firewall penetration for the throttle and mixture cables has a double ball jointed piece that was installed way back in Section 28 or something. THAT would have been the time to run the cables through! A 10 minute job with no expletives. I did it in accordance with the plans. So, the engine was in the way as well as all the plumbing. NOT a 10 minute job. Many expletives if you are working alone. I'm not sure two or three people would help, actually. Little room for even one hand, let alone two or three.