Нужна разработка прототипа игры на Unity3D

Здравствуйте. Вот тут описана концепция игры https://docs.google.com/document/d/1XYzqbg6VkVNPHfeG3uSVmIVTi6CyOs4PN_DQgR30LiQ/edit?usp=sharing

А ниже описание разработки первого этапа.
От вас требуется стоимость и срок разработки этого этапа (Ассеты будут предоставлены).

Deliverables

1. Do the MVP 3D isometric Concept scope for the game
2. Target Platform: Android

MILESTONES

Technical foundation

Aims: 

1. Creating project
   1. Import assets
   2. Setup scenes
   3. Create gray box locations
2. Implement the core classes
3. Starting with artworks for the locations arenas and levels (3 levels, 12 arenas)

MS 1

Aims: 

1. Camera movement scripting, Build and polish Fight System, Assets implementation:
2. Implement the core fighting mechanics:
   1. Enemies can block the attacks and roll around. A hero cannot block the attack, he can only roll around to avoid being hit. 
   2. Hero can knock down the enemy with "one punch" if dashed at the center of an enemy from the back (quickly roll to the back and immediately punch).
   3. several knock downs lead to a permanent knockout. The enemy lies on the ground, blinks a couple of times and disappears.
   4. if a hero hits the enemy from the front (as opposed to from the side/back) - the enemy raises his arms in the protective position and turns to the hero, he can attack the hero at once. The speed of turning, blocking and counter-attacking should grow with the levels.
   5. Reaction and a quick tapping are the most important aspects of the victory. Only the perfect "kill" will bring the maximum score.
   6. The hero can beat up the victims just as he beats the enemies. The victims don’t resist and don’t bring any reward (TBU)
   7. The enemies can attack a hero one by one or at the same time, depending on how well a player fights(TBU). If it happens one by one, then those waiting for their turn harass victims during a waiting time, and then turn on the hero once a hero has no more bullies to fight (enemies finish with the victims and approach the hero).
   8. When a Hero wins, he approaches victims that are down, they get up and "send him likes"(TBU). When a hero moves, they just follow him and wait for him outside arena during the fight.(TBU)
   9. Pushing, Kicking and rolling
   10. The core fighting mechanics consists of moving the character in the arena and tapping 2 buttons (punching/kicking for the attack and rolling) at the right time to inflict maximum damage on the enemies and avoid being hit.
   11. Damage system building and polishing
   12. Bonuses coins and heals system
3. Three enemies implement with behavior
4. Time count for the arenas

Deliverables:

All the gameplay mechanics, every single gameplay feature (like in referred samurai games) will be implemented during the milestone.