Looking for someone experienced with UE5 Blueprints – Small Gameplay System ($10 USD)

Hey everyone! I'm looking for someone who can help me make a small UE5 Blueprint gameplay system for my game.

The system is basically an item/reward shop:

Player starts with ¥4,000
There are 7 items, each with a different price
Player buys an item → its price is deducted from their wallet
A weighted random reward is generated
The reward's value is added back into the wallet
They can continue buying as long as they can afford an item
Rewards
Nothing → ¥0
Bronze Cat Trophy → ¥800
Silver Cat Trophy → ¥2,000
Gold Cat Trophy → ¥5,000
Probabilities

Default:

Nothing: 20%
Bronze: 50%
Silver: 25%
Gold: 5%

The probabilities change depending on the item's price:

Cheap: Nothing 5%, Bronze 70%, Silver 20%, Gold 5%

Medium: Nothing 20%, Bronze 50%, Silver 25%, Gold 5%

Expensive: Nothing 20%, Bronze 30%, Silver 35%, Gold 15%

I'd like the probabilities and item prices to be easy to modify later.

The random system should use one random roll from 0–100 with cumulative ranges, rather than separate random rolls.

I already have my own UI, so I don't need artwork or a complicated UI. I mainly need the Blueprint logic and an easy way to connect it to my existing UI.

Budget: $10 USD fixed.

This is a small task, so I'm mainly looking for someone comfortable with UE5 Blueprints who can put this together cleanly.

For some background on me/my studio:

Steam: https://store.steampowered.com/developer/BabGamesStudio

YouTube / UE5 development videos: https://youtube.com/playlist?list=PLH_w-huliRb_o2ZqBYF2LEJ6nAXCh_ggz

If interested, please DM me with examples of your previous UE5 Blueprint work. Thanks!