>>7964554If you want to keep it simple I'd suggest not mixing and matching different toy lines if you're a beginner. Besides, spending ~$50 just for a head sculpt doesn't seem worth it.
I mocked up something for you using ML Polaris and ML Black Widow. On the left is the kitbash and the right is what it could look like with some work. I realized afterwards that the black suit doesn't come with guns or effect pieces but the sculpt looks mostly the same so you can just go with the white suit instead. Also keep in mind that ML head pegs aren't universal so some slight modifications might need to be done.
