Traveling from Ensenada to Cabo

I believe it is over 1,000 miles from the US border to Cabo - maybe a little under 1,000 from Ensenada? Last I knew the lanes are 9 feet wide and there is no shoulder - a drop off - no margin for error. Lots of curves etc. I am not sure what speed it is possible to average if you are not highly experienced driving this type of road. Our motorhome is 8'6" wide (not including mirrors etc - so are those semi tractor trailers coming the other way. That means about 3 inch margin on either side not counting mirrors or anything else. Drive at night??!! Not in a 6' wide car! Cows. Horses. Topes. You name it. We heard the truckers running all night - and saw some in the ditch in the morning. Driving these roads is exhausting. How many hours before we can't take it anymore? Our general idea of a day of driving in Mexico on the best of roads is to try not to exceed 200 miles - rarely push it to 300 - and that is on Interstate highway type roads. In the Baja? Well we don't do the Baja anymore - maybe to Ensenada but not much further. Mainland for us. I guess the young still find challenges like the Baja worth the risks.