Eh, why not? It's a fire gecko pelt! Even at MkI it should be as good as both leather jacket an la1 combined.
Nah.
Maybe it should be a Leather Armor Mk1 variant.
It certainly shouldn't be overall better than LA Mk2.
That was my thought. It would work fine as a fireproof MK II variant (not another upgrade). Why? When you upgrade LA MK I to II you use hard golden gecko pelts and thick brahmin hide. If you use scaled fire gecko skin instead - you'll get same normal but higher fire/laser/plasma dr and a new, awesome look! #swag
It would give you a choice similar to the one you have when you go on a low-level pvp (tesla or ca), here it would be LA MK2 vs Fireproof Leather Armor!