I would recommend Terry Kaffarov, I pay for this Patreon. He makes them well, his request email is email@example.com(I don't know what he charges) Here's what he wrote for request: Hi, I'm Terry and I make skins for GTA V, All my skins are fully animated, with facial expressions.
if you have a request, send an e-mail to firstname.lastname@example.org.
Requests are paid separately from patreon, and the price depends on the request.
and you only pay after i finish the work.
Not sure if he doesn't objects, like a DC-3 plane(I only seen him do characters from other games and some weapons)