Simple 3-D Skateboard "Spit Fire" Arena Project

Hello! My name is Max! I live and work in Minsk (Belarus). I am a sports promoter and a fan of extreme sports as well as martial arts! My goal is to build a free multifunctional sports center with a skateboard arena, artificial rock for climbing and a big work out area with a ring! For this purpose, I decided to unite the whole world! And for starters, I need a simple 3-D arena skateboard project! International competitions will be held on it, therefore, it must comply with these goals and the 3-D project must show this. On ordinary days, it will be open to everyone and there you can ride for free and hone your skateboarding skills! Arena area not determined! But I have to be from 20,000 sq.m or more! Also an important requirement: the ramps must be varied and at a large degree of inclination! There should be a large screen for the projector on the wall. Other walls will be painted in graffiti! The project should not include anything but the visual part! Therefore, I called it a simple 3-D project without a detailed plan and drawings!