Seems to me the dimensions are listed on the site, you may end up having to messure. If you want it, you may have to go to a smaller cap set up. I think you can just change this out? It is common to have to cut the pan here or there to accomidate linkage.
On the air cleaner front, read:
Stellings & Hellings w/ K&N airflow
I am taking off my monster K&N assembly and going to the pan and stellings/hellings cleaner. Most of the time I will stack to get the flow I want covered with a perferated aluminum for appearence sake. You could perhaps go to the K&N 9" xtream assembly with a 5" filter which is 863 CFM but either way, the look may cost a couple of ponies!
No definiative answer...... but then again, how often is there one!
Rick