Here's what you do: Use the LosTech Prospector Life Path to get a Custom Vehicle and have in tha vehicle's cargo bay any armor of any strength you want. So if you want armor that is 100,000 times stronger than standard armor, then go for it.
Think you miss the part where Custom Vehicle trait doesn't allow that at all. Look in the core rule book to see just what Custom Vehicle does.
It allows stuff like Pick from RATs, get different RATs, or build your own (within established rules).
Find another way young munchkin, the munchieness is weak in you.
EDIT: Plus you can't use vehicle traits to get a cargo vehicle and have the cargo hold magically filled with stuff you did not buy with character wealth let alone stuff that doesn't even exist.