Have you downloaded the Pompeii plans from the FB store. I don't recall specifically the number of bricks...if you have it you could check for the 40 inch pompeii and probably increase the amount by 10 to 20 percent
I don't recall a downloader for brick cutting other than the one about the "Angle-ize" product. I purchased one from a website called
Dewalt power and cordless tools - Porter cable tools - Dewalt...it is listed as "the Angle-izer"...will cost about $25 shipping and all...comes with a CD rom that will do all kinds of calculations and tips for you with regard to cutting brick and tile
Best
Dutch