Unity 3D Game Enhancement and Feature Integration

Hi I have all models assets I need implemented into my game. I also want the features below added.

This is the template I have used
https://www.sellmyapp.com/downloads/bastion-wars/

Graphics I want to implement
Heros - https://assetstore.unity.com/packages/3d/characters/humanoids/rpg-tiny-hero-wave-pbr-228701
Enemies - https://assetstore.unity.com/packages/3d/characters/creatures/rpg-monster-bundle-pbr-260493
Environment - https://assetstore.unity.com/packages/3d/environments/landscapes/ultimate-low-poly-nature-pack-200773


FEATURES TO ADD
Two in game currencies 
Gems which are already included and upgrade the base and hero
Coins which are awarded after each level completion

Advertisements
After each level offer double gems if you watch an advertisement
Advertisement after each level
Offer in the store to watch an add for Gems or for Coins

Enemies
- many kinds of enemies
- Boss every 10 levels

Hero upgrades - Coins to upgrade
Some hero upgrades you have to in app purchase
-Chest
-weapon - can be range or melee
-legs
-gloves
-helmet

Base Castle level - Gems to upgrade
Also upgrade the base to be able to continue to upgrade the base attributes
This uses coins to upgrade

Lives - Coins to buy more
5 lives if you lose, you lose a life
Each life regenerates in 10 minutes or buy more

Must be able to build for IOS and Android