Studio 2 Pi cabinet construction questions


To Wayne and the rest of the guys,
I found a cabinet maker who will make the cabinets for me. I opted for mahogany. In line of this, I have the following questions:
1. As this is my first time in speaker building will I have any problems installing damping materials, drivers, wirings etc. in a finished cabinet? Or do I have to install everything inside before I close the back?
2. Does the Studio 2 Pi require bracings? If so, how?
3. What is the size of the connector panel hole? Is the 2.875" wide X 2.175" tall true for all connector panels included in the kit?
4. Also will changing my dimensions to 30.5" X 14" X 8", which has the same volume of 1.36 cu.ft. compared with the original dimension of 22" X 15" X 10" pose a problem?
5. Other suggestions or modification
Thank you for your patience in answering a newbie like me. I hope to build a 4Pi if this initial project succeeds :-)
Edwin



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