Discord bot with economy and game

I am already using that bot on my server

https://unbelievaboat.com/commands

I use this one because of the 4 main functions:

1) Economy (check the link for the command details)
- Create my own coin with logo
- distribute mass to specific role, remove, add, etc...
- leaderboard

2) income (check the link for the command details)
- depends of the role, get specific income
- earn the coin per chat, limited amount per day

3) items shop (check the link for the command details)
- create, delete
- descriptoin and photos
- price
- trading use or give

4) Game - russian roulettte (check the link for the details)
- set up the limit
- all member bet their amount they want
- only one winner

I would like to add new game that use the same coins, like

1) racing
- buy pet from store
- each pet has level when they race
- when racing , player need to bet and only 1 winner
- 10 type of pet with different price, higher the price, higher the chance to win

2) role playing
- do dungeon
- fight monster
- when die , lose all coins
- need to pay to repair weapons or armor
- need to pay rest or buy potion

3) arena
- player bet to fight each other
- get gear with different rarity
- chance to win
- 10 fight per day
- reward to top 3 , reset every week

so I belive we have 3 choices
- build the games that use that existing coin
- create a bot from scratch that has these 4 main functions then create the games around it
- use exisiting open script bot, customized it with these needs and games

Please do let me know your options and what you can do