(1) ELEC can passing through POLO (like my mod)
(2) URAN + 2 PROT -> PLUT
(3) HEAC-VIBR alloy is resistant to EXOT
(3) His point for that is for his own gain (read the edit)
Not sure why you replied to me with reasons why this is not a good idea. I'm against point 3 in this post, just like you.
If you consider everything that can't be destroyed by fire and pressure "indestructible" then you probably won't have very fun playing the game.