1969 BBC Pan to crank clearance?

[CDNL-78]

As the title says, just looking for the clearance measurement from the bottom of the crank to the bottom of the inside of a 69 Camaro oil pan. I'm sure someone here know this answer. I'm thinking I might notch out the oil pan on the 72 Vega for steering clearance. I will still bend the pitman arm slightly as Baldwin/Motion did in the day, but this will also help my cause out. Please have a look at the picture to see where I'm having the clearance issues. All I need is 2" for the center link to clear the oil pan. At this point both my BB's are in vehicles and getting that measurement is virtually impossible at this point. This measurement will tell me if this can be part of the solution.

Thanks for the help Yenko.

http://www.yenko.net/ubbthreads/pics/usergals/2015/02/full-7028-21607-img_0315.jpg