[Unity3D] Convert Singleplayer Game to Multiplayer Game

we got a project [Siege Of Legends] the game is ready to be played as single player [Against bot] all the logic of the game , building , spawning , using ability is ready and fully programmed . what do we need ? : we want to convert this singleplayer game to a multiplayer game using [Photon Networking] OR [Unity Networking] OR any other networking engine but the main purpose is to have a FULLY Synced match were the player [HOST] will get blue team and [CLIENT] will get the enemy team red team . the player will be able to find a match [Simple Match Making System] joining the match and waiting for the other player to load and sync the scene . match starts then they start getting gold from the server [20 gold per player] (all this has been coded already) then the players will be able to spawn units on 3 paths and the units will be fully synced (health,damage,level,position,rotation etc ...) and the units will attack other enemy units . the game has 2 bases , 1 for each player , blue and red and they must spawn units on each lane to destroy the other enemy base and win the game . each player got 1 turret to defend his base . here is a singleplayer trailer for the game : [login to view URL] regards