If the rods are round I wouldn't worry about changing the rod bolts for your build. I've pounded the daylights out of dozens of stock rods and bolts and never had a bolt fail.
You'll likely have a beam issue before a bolt issue.
I think it's hard to beat a Fel-Pro gasket kit, including their head gaskets. Lots of clamping force on a big block. No need for fancy gaskets on your build.
Personally I like using the King bearings over any other brand.
Rings whatever you can find will be fine.
Don't over think or over spend on it. The aftermarket parts you going to buy are as good or better than what the OEM used.
Tom
