Fortnite UEFN Developer for Interactive Trade Fair Mini-Game (Plumbing Theme)

I am looking for an experienced Fortnite UEFN developer to create a simple, interactive mini-game for a trade fair setup.

The goal is to build a short (45–60 seconds) singleplayer challenge that introduces young players (ages 10–14) to a real-world profession (plumbing) in a fun and engaging way.

The game should be very simple, intuitive, and use mostly standard Fortnite Creative / UEFN devices (no complex custom systems).

Core concept:

Player spawns in front of a house
Enters the house and finds a water leak (one of two bathrooms)
Goes to the basement to shut off the main valve
Finds the correct tool (e.g. pipe wrench)
Returns to fix the leak
Timer (stopwatch) measures completion time

Requirements:

Singleplayer only (one player at a time)
Not for public release (used only locally at a trade fair on PS5)
Use an existing Fortnite Creative house (e.g. “Misc House”) to reduce development time
Clear visual guidance and simple interactions
Visible timer (HUD + optional in-world display)
Basic UI feedback (HUD messages, success screen)

Important:
This is NOT a realistic simulation.
We want a simple, clean, and robust mini-game with good player flow.

Deliverables:

Fully playable UEFN map
Clean device logic (Timer, Tracker, HUD, Buttons, etc.)
Ready to test and use at an event