Ok. This further will make it difficult. Turns out it's at least 6 crates he does. So he actually is within Franks AP exactly (3 Megajoules) if not higher. Even if Frank has resistance, still taking damage from such distances, plus the odds of him being able to work it out with frank. Also, healing items kinda being mute considering Larry can heal himself with the tablet. And there is another advantage that his flashlight can point out secret places around the mall he can use to also get around or hide.
As well. I didn't even realize until just going back. He also can raise a shield at any point to deflect damage. So he has his own sort of invulnerability that he can also use at any point. So ever laying damage in him is gonna be really hard, in a place filled with others, where he can jump around with paintings, create shields at any point, manipulate the weather to make it harder to see himself, is on his league if not superior durability, and can heal himself. I'm having a hard time seeing frank working past all that. Especially since we can say Franks fairly reasonable. If Larry managed to approach while using his shield to deflect things. He may give it a verbal ending there. Both would have a preference not to kill the other (Frank being more willing to though). Larry can also befriend most ant artifact into helping him really to. His tablet even helps on doing that. The safest bet for me ATM is inconclusive. Larry's range, distractions, physicality, haxs, and mobility keep him pretty dang far from frank, even when he knows the lay of the labs. Franks juices though would also keep him in the game if taking damage, so it just sounds like they are running around and shooting at each other until one of them screws up some. And frankly, it doesn't seem like it's possible to tell who would. So they run around till one of them screws up and the other hammers that advantage in. Or they both try the stop fighting approach since both are responsible, and both would rather not kill the other. Neither have a Bloodlusted Personality
Also. Thank goodness he didn't choose it to take place at the museum itself. I'm sorry, but franky boi is not winning in that instance. (Larry can summon a literal army. And I when I say army, I mean an actual definition of an army)