Complete Game Server Using C++

I have server file for online game 3D for PC i want to complete missing thing at it but i dont have source for client ( c++ ) i just have developer client so we use Ida pro or any programmed to extract data from it by make Reverse Engineering then code it to server file ( c+ ) and i have some assets file like ( full game list item ..skills ...monster ...npc code and game master console list ) and this things need to done is :- 1- skills ( need fix - damage formula - animation ) 2- when character die it back to main town 3- Monster (algorithm-Move - Resp own - Dungeon Mode ) 4- pvp ( this game is pk game 2 nation ware ) 5- health potion ( to resort character health ) 6-quests { quests already work - but need add more quests } 7- pet / frontier holy / horse 8- chat for player speak to gather 9- party 1/8 member( league ) 1/ 24 member i think 10 - frontier(guild) / friends list 11- trade - private shop 12- Cash item shop this thing down already work at old server ( and i have this old server source so we can take it and implement it at new one that we work at it ) 1- skill animation 2- pvp 3- monster move - attack - resp own - give gold 4- lvl up ( character stats increase when player lvl up - character get 1 skill point and 1 ability point ) 5- potion 6- ride horse / but cant down from it 7- gm console