Hi, I'm a game developer with 5 years of experience in game industry, I can build your Gta5 server, it isn't difficult to do. I want to solve all of your problems and build this server, hope you too.
I've worked on many third/first person shooter, especially TPS, with physics, animations and server side.
I have experience with gta 5 and with games in general, I can use C# and JS (or C++ and others), this is a perfect job for me...I love to create gta mod/server.
I will obviously communicate with you, communication is foundamental.
I am available for any clarification on the expiry date and on the budget.
For extra information go to my account to read my skills, I wait for more information ;)