help me blueprint a 410 ported eddy motor

A couple things - You need a goal. You either want a blower engine, or a N/A engine. You can build a N/A but when you stick the blower on it you won;t be safe making much boost because the "foundation" parts should not be the same for both builds.
On the SIRs - If you only want 500hp, I don't think they are the best choice, but they should work. But - if you want to boost it, get better rods. The H beam Eagles are more cash but will hold anything you want to put thru them forever.
Building for pump gas for boost or N/A are very different - so figure out what you want and what you can afford. It might make more sense to take the 360 block and build a 408 simply for NA now, and build a seperate engine for the supercharger later.