C30 questions

[low&slow]

From my understanding of searching the forum, a c30 cab is interchangable with a c10 cab with the exception of the rear cab mounts being slightly different. I was also told that the firewalls are slightly different as well.

Questions:

What are the differences on the interior for a c30 and a c10?

Are the dimmensions of a c30 cab the same as a c10 cab?

Does anyone have pictures of a firewall on a c30 cab?

Thanks in advance.