Recommondations on 3d Models and Animations

Hello Together,

I am a professional Programmer and hobbyist Game Designer (until redently focused on boardgames).

I now want to create a game with unity. I am already familiar with the programming side of unity, but I have no idea about graphics. I dont think it is a feasible way for me to learn 3d modeling and animation for games and create all or even most assets myself.

Therefore I want to buy assets, I want them to match in style etc. and i need them to be animated decently. I'm assuming this would cost me up to $10k, do you think that might be accurate?

Now the most important question: What kinds of services can/ can't you recommend? I have found 2 services, that could be interesting.

One is mixamo which provides a wide range of animations, but im skeptical, whether i can just buy any models and stick those animations on them.

The other service I found is 3DMorph which seems to offer pretty customizable models, but does not seem to include animations at all.

Are there alternatives? Can I combine them?

Thanks for your opinions!