For anyone worried about live action Chopper...
Netflix's Sweet Tooth had an astronomically lower budget than OP, and yet they were able to do Puppets that looked like this and felt super real
Yes, they used CGI for the eyes and mouth and stuff but that's nothing cost wise compared yo say Rocket Raccoon
Chopper is for sure going to be a blend of practical and cg, but shows like Sweet Tooth prove it can be done super well