I don't want to see the "ultimate end game thing" of a tech mod to use VANILLA nether material.
These materials you listed are nothing more than primary resources. And it cost nothing more than a bucket, some water and lava, one piece of flint and iron to go to the nether, all of that can be obtained the first minecraft day.
These Nether material should be in the very first step. Or maybe the second one. But definitively not the latest.
And any tech mods that can be played with vanilla resources only is guarantee to be horrible from my point of view, since vanilla resources are extremely limited.