Help needed! can be paid

Hi guys!

Im a hobbyst video maker and I want to make an video clip using some cemetery scene and put there my artist recorded with sony alpha a7s3 on a green screen.
Ive been through some tutorials but it takes so much time…
Can somobody connect with me via discord screen sharing and explain to me, guide me through basics how and why? I think 1 or 2 hours would be enough for my purposes. I can pay by hour if somebody with skills would be interested.
If so please tell Your price and eventuall questions, remarks.

Thanks a lot!