Hey ya'll

I was wondering if anybody managed to create a "more money mod" for the custom/single battle?

I wanted to replay kind of an "elite vs. elite" battle but turns out, i didn't have enough money to recreate that... I was kind of surpised at how limited the credits given to us are even in "Large funds" mode on. (For example, I ran out of money after upgrading 4 Ottoman Organ gun to "Elite" status)

Does anybody have a mod for this or would mind giving me directions on how to mod this?