I seriously doubt they need money to 'keep the lights on'. It appears so stable that if they really needed money, they could probably release it as a beta right now, and people would buy it.
You can donate to me instead if you want haha.
I'd just wait until there's a donate button, or a purchase button
I wouldn't mind paying for a pre-beta buy in
Seriously, I'm sure the guys are more than grateful for the gesture. But save your bucks for your license. As you already can see, it'll be well worth it.