I really appreciate that question, feedback, and offer! I don't have anything like that set up at this point as I feel like that would be detracting from the guy who created the game that I'm enjoying tinkering with. Though I do sink a lot of time and effort into the mod, it is still primarily a hobby for me and I don't want to steal any of the thunder from the game authors who are depending on supporters to be able to keep making the games that they put their heart and soul into. Authors like Maverik who make quality games, are willing to still release their games to the public for free, and don't lock their games behind a pay-wall so anyone who wants to enjoy them can play them should be supported.
I have a game project idea I am very slowly working on behind the scenes that I will hopefully get to the point of releasing in the future. If that happens, I would definitely create a method of support. Until then, I hope that you'll support the game's developer financially and support me with accolades and feedback on the mod for now!